Malt

3rd April 20258th April 2025 By Simon

Words for malt and related things in Celtic languages.

Proto-Celtic	*mrakis = malt
Gaulish	bracis = malt (?)
Old Irish (Goídelc)	mraich = malt braichles = wort
Middle Irish (Gaoidhealg)	braich = malt, malt liquor braichles = mash, wort
Irish (Gaeilge)	braich = malt braicheadh = malting braicheadóir = malster braichleann = malt liquor braichlis = wort
Scottish Gaelic (Gàidhlig)	braich [braç] = malt, fermented grain brach [brax] = ferment!, malt!, fill with pus!, gather! mac na bracha/braiche = single malt whisky
Manx (Gaelg)	bry, braih = malt braghee = malted, malty braghey = to ferment, malt, malted, fermentation
Proto-Brythonic	*brag = malt (?)
Middle Welsh (Kyrmraec)	brac, brag = malt, barley grain bragio, bragv = to brew, malt, scheme, spoil, ruin, germinate, sprout, shoot
Welsh (Cymraeg)	brag [braːɡ] = malt, barley grain, alcoholic drink produced by fermentation of malt, ale; a brewing, fermentation; brewery brag(i)af, bragu, brag(i)o = to brew, malt, scheme, spoil, ruin, germinate, sprout, shoot braglyn = malt liquor bragodyn = germ, sprout bragwr, bragydd = brewer, maltster brecâf, brecáu = to mash (malt in brewing) bracty, bragdy = brewery, malthouse
Old Cornish	brag = malt
Middle Cornish (Cernewec)	brag, brâg = malt
Cornish (Kernewek)	brag = malt
Middle Breton	braguez = (germ of) grain
Breton (Brezhoneg)	bragez [ˈbrɑːɡes] = (germ of) grain

Etymology: uncertain, possibly from Proto-Indo-European *mr̥ke/o / *morko, from *merk- (to be soaked, be weak). Words from the same Proto-Celtic roots, via Gaulish bracem and Old French bracier (to brew), include brasser (to brew, intermingle), brasserie (brewery, brasserie, beer parlour), and brasseur (brewer) in French, brasserie in English.

Words from the same PIE roots include marcire (to rot, fester, go bad) in Italian, marchito (wilted, faded) in Spanish, marcir (to wilt) in Catalan, and mer̃kti (to wet, moisten, soak) in Lithuanian [source].

Sources: Wiktionary, Etymological Dictionary Of Proto Celtic, In Dúil Bélrai English – Old Irish glossary, eDIL – Electronic Dictionary of the Irish Language, Teanglann.ie, Am Faclair Beag, An etymological dictionary of the Gaelic language, Fockleyreen: Manx – English Dictionary, Online Manx Dictionary, Gaelg Corpus, Geiriadur Prifysgol Cymru, Lexicon cornu-britannicum : a dictionary of the ancient Celtic language of Cornwall, Gerlyver Kernewek, Devri : Le dictionaire diachronique du breton, Geriafurch, TermOfis

Breaking the Wind

29th March 202529th March 2025 By Simon

A post about words for flatulence and related things in Celtic languages, and related words in other languages.

Words marked with a * are reconstructions.

Proto-Celtic	bragyeti = to fart, flatulate braxsman = fart *brag-(y)o- = to fart
Gaulish	*bragiū = to fart (?)
Old Irish (Goídelc)	braigid [ˈdʲesʲkʲibul] = to fart broimm = fart
Middle Irish (Gaoidhealg)	braigid = to fart broimm, broim = fart(ing)
Irish (Gaeilge)	broim [bˠɾˠiːmʲ] = fart, to fart broimneach = (act of) farting broimnéis = (of speech) windiness, fury broimnéiseach = loud-voiced, furious, bellicose broimseán = windiness, rudeness broimseánaí = windbag, rude person broimseánta = rude bromaire = farter, windbag, boaster bromaireacht = windiness, (act of) boasting
Scottish Gaelic (Gàidhlig)	bram [brãũm] = fart, breaking wind (with noise) braim [brɤim] = fart, breaking wind (with noise) bramag [bramag] = small fart
Manx (Gaelg)	breim = fart, raspberry breimeragh = to fart, farting breimmey = to fart
Proto-Brythonic	*bramm = fart (?)
Middle Welsh (Kymraec)	bram, bràm = fart, gentle puff bramu, bremain, brammu = to fart, break wind
Welsh (Cymraeg)	bram [bram] = fart, gentle puff bramu, bramio = to fart, break wind
Middle Cornish (Cernewec)	bram = fart bramme = to fart
Cornish (Kernewek)	bramm, brabm = fart bramm an gath!, brabm an gath! = cat’s fart! fiddlesticks! bramma, brabma = to fart
Middle Breton (Brezonec)	bram = fart brammet = to fart
Breton (Brezhoneg)	bramm [brãmː] = fart brammadenn = fireball brammañ, brammat = to fart brammellat = to backfire brammer = farter

Etymology: from Proto-Indo-European *bʰr̥Hg-yé-ti, from *bʰreHg- (to stink, smell, have a strong odour) [source]. Words from the same Proto-Celtic root, via Gaulish *bragiū (fart) and Latin bragiō (to bray, cry, weep), include (to) bray in English, braire (to bray, shout, cry, weep) and brailler (to shout, yell, speak very loudly) in French, sbraitare (to shout, scream, yell, rant) in Italian, and breté in Gallo [source].

Words from the same PIE roots possibly include braña (mire, bog, fen, march, moorland) in Galician, flair, fragrant in English, flairer (to smell, sniff, scent, sense) in French, fragare (to smell) in Italian, cheirar (to smell) in Portuguese, and words for rotten, putrid, foetid, etc in Celtic languages, such as braen (rotten, putrid, corr) in Welsh – see the post Rotten Fragrance for more details [source].

Old Irish (Goídelc)	tútt = smell
Middle Irish (Gaoidhealg)	tút(t), túth = smell, stench
Irish (Gaeilge)	tuth = odour, stench, funk tuthóg [ˈt̪ˠʊhoːɡ] = puff, fart tuthógach = puffing, farting, malodorous
Scottish Gaelic (Gàidhlig)	tùd [tuːd] = stink, stench, (silent) fart) tùdach [tuːdəx] = stinking, farty, abounding in (silent) farts

Etymology: unknown

Proto-Celtic	ɸrikkā, frikkā = fart
Proto-Brythonic	*rrex = fart
Middle Welsh (Kymraec)	rech, rhêch = fart rhechain = to fart rechyaỽc = farting
Welsh (Cymraeg)	rhech [r̥eːχ] = fart rhechu = to fart rhechiog = farting rhechwr = farter dim gwerth rhech dafad = worthless (“not worth a sheep’s fart”)

Etymology: from Proto-Indo-European *perd- (to fart loudly, to pass gas, break wind) [source]. Words from the same roots include fart, partridge in English, pjerdh (to fart) in Albanian, пърдя (pǎrdjá – to fart) in Bulgarian, Furz (fart) in German and fjärta (to fart) in Swedish [source].

Nights

20th March 2025 By Simon

A post about words for night, evening and related things in Celtic languages, and related words in other languages.

Words marked with a * are reconstructions.

Old Irish (Goídelc)	adaig [ˈaðəɣʲ] = night
Middle Irish (Gaoidhealg)	adaig, aidche, oidche, adhaigh = night
Irish (Gaeilge)	oíche [ˈiːhɪ/ˈĩːçə/ˈɪhə] = night, period of darkness, night-time, nightfall, eve anoíche = late hour of night meánoíche = midnight oíchí = nocturnal, nightly Oíche Shamhna = Halloween Oíche Nollag = Christmas Eve oíche chinn bliana = New Year’s eve
Scottish Gaelic (Gàidhlig)	oidhche [ɤ̃ĩçə] = night oidhcheach [ɤ̃ĩçəx] = nightly, nocturnal oidhcheil [ɤ̃ĩçal] = nightly Oidhche Shamhna = Halloween Oidhche Nollaige = Christmas Eve oidhche Challainn [ɤ̃çəˈxal̪ɪn̪ʲ] = New Year’s eve adhaigh†, adhuigh† = night
Manx (Gaelg)	oie [ɛi/iː] = night, eve, night time, nocturnal, evening oieagh = nocturnal oieoil = nightly Oie Houney = Halloween, Hop tu Naa Oie Nollick = Christmas Eve Oie Nollick Veg = New Year’s eve
Proto-Brythonic	*exuɨð = night (?)
Middle Welsh (Kymraec)	hecuuyt, echwyd, echwyt = the third hour of the day (9am), interval between 9am and 12 noon, noon, time of the day when cattle etc. shelter from the heat
Welsh (Cymraeg)	echwydd [ˈhɨ̞ðɨ̞ɡl / ˈhɪðɪɡl] = the third hour of the day (9am), interval between 9am and 12 noon, noon, time of the day when cattle etc. shelter from the heat, afternoon, evening, close of day, autumn
Middle Cornish (Cernewec)	ewhe = evening
Middle Breton (Brezonec)	ehoaz, ehoa = cattle rest at midday, resting place, shade for animals, rest ehoazaff = to day a midday rest
Breton (Brezhoneg)	ec’hoaz [ˈhyː(z)il] = midday rest, siesta ec’hoazañ = to take a midday rest ec’hoaziad = siesta ec’hoaziata = to take a siesta

Etymology: uncertain. The Goidelic words, and maybe the Brythonic words, are possibly related to āter (dull black, dark, gloomy, sad) in Latin [source], which comes from Proto-Italic *ātros (black), from Proto-Indo-European *h₂eh₁ter- (fire) [source].

Words from the same roots may include atrocious and atrocity in English, âtre (hearth, matte black) in French, atro (dark, black, bleak, brooding) in Italian, and atro (jet-black, bad, evil, sinister) in Portuguese [source].

Proto-Celtic	noxt-stu- = night (?) sindai noxtē = tonight
Gaulish	nox = night (?)
Old Irish (Goídelc)	nocht = night innocht = tonight
Middle Irish (Gaoidhealg)	nocht = night innocht = tonight
Irish (Gaeilge)	anocht [əˈn̪ˠɔxt̪ˠ] = tonight
Scottish Gaelic (Gàidhlig)	a-nochd [əˈn̪ˠɔ̃xg] = tonight
Manx (Gaelg)	noght = tonight
Proto-Brythonic	*hanoɨθ = tonight
Old Welsh (Kembraec)	nos = night henoid = tonight
Middle Welsh (Kymraec)	nos = night nosa, nossi, nosi = to become night, fall (of night) nossavl, nossol, nosawl = nightlike, nocturnal, nightly nos hon, noshon, nosson = evening, night nosweith, nossweith, noswaith = evening, night heno = tonight
Welsh (Cymraeg)	nos [noːs] = night, evening, darkness (of night), vigil nosi, nosáu = to become night, fall (of night) nosaidd = nightlike nosol = nightlike, nocturnal, nightly noson = evening, night noswaith = evening, night heno = tonight
Old Cornish	nos = night
Middle Cornish (Cernewec)	nos, nôs = night haneth = tonight
Cornish (Kernewek)	nos = night nosweyth = night-time, at night noswiker = smuggler haneth = tonight
Old Breton (Brethonoc)	nos = night
Middle Breton (Brezonec)	nos = night fenozh, fennos, fenoz, fin-noz = tonight antronoz all = the day after tomorrow
Breton (Brezhoneg)	noz [ˈnoːs] = night noziñ [ˈnoːzĩ] = to get dark nozvezh [ˈnoz.vɛs] = overnight stay, duration of one night nozik = a little dark henoazh = tonight eil tronoz = the day after tomorrow

Etymology: either from Latin nox, from Proto-Italic *nokts (night), from Proto-Indo-European *nókʷts (night). Or via Proto-Celtic *noxs (night), from the same PIE root [source].

Words from the same roots include night in English, Nacht (night) in German, ochtend (morning) in Dutch, otta (dawn, early morning) in Swedish, ακτίνα (aktína – light ray, sunbeam) in Greek [source]

Cressy

7th February 2025 By Simon

Words for cress, watercress, and related things in Celtic languages.

Watercress is a perennial European herb, Nasturtium officinale, that grows in freshwater streams; used in salads and as a garnish, or a similar plant, Nasturtium microphyllum [source].

Cress is a plant of various species, chiefly cruciferous. The leaves have a moderately pungent taste, and are used as a salad and antiscorbutic. [source].

Words marked with a * are reconstructions.

Proto-Celtic	*beruros = watercress
Gaulish	berula = cress
Old Irish (Goídelc)	birar = watercress
Middle Irish (Gaoidhealg)	birar, biror, bilar, bilur = watercress biolar Mhuire = brooklime biolar tragha = scurvy-grass birarán = clean-topped cress
Irish (Gaeilge)	biolar [ˈbʲul̪ˠəɾˠ/ˈbʲɨlˠəɾˠ] = cress, watercress biolrach = cressy
Scottish Gaelic (Gàidhlig)	biolair [bjul̪ʲɪrʲ] = cress, especially watercress biolaireach = pertaining to or abouding in watercress
Manx (Gaelg)	burley = cress, watercress
Proto-Brythonic	*berur = cress (?)
Middle Welsh (Kymraec)	berwr, berỽr, berw = cress, watercress
Welsh (Cymraeg)	berwr, berw = cress, watercress
Old Cornish	beler = watercress
Middle Cornish (Cernewec)	beler = watercress
Cornish (Kerneweg)	beleren = cress beleren dhowr = watercress
Old Breton (Brethonog)	beror = cress, watercress
Middle Breton (Brezonec)	beler = cress, watercress
Breton (Brezhoneg)	beler [ˈbeː.lɛr] = cress, watercress belereg / belerid = watercress bed belerek = abounding in watercress

Etymology: from Proto-Celtic berus (spring, well), from Proto-Indo-European *bʰrewh₁- (to boil, brew), or from PIE *bʰréh₁wr̥ (spring, source). Words from the same Proto-Celtic roots, via Gaulish *berulā and Latin berula (a herb: bittercress or waterparsnip) include berle (water parsnip) in French, Berle (water parsnip) in German, and berro (cress, watercress) in Spanish and Galician [source].

Pursuing Followers

11th January 2025 By Simon

Words for to follow, pursue and related things in Celtic languages.

Words marked with a * are reconstructions.

Proto-Celtic	*sekʷetor = to follow
Old Irish (Goídelc)	seichithir = to follow, persue sechem = following, imitating
Middle Irish (Gaoidhealg)	seichithir sechethar, sechtir = to follow, persue sechem, sechim = following, imitating sechimthid, seichteóir, seichthid = follower
Irish (Gaeilge)	seicheamh = following, taking after, imitating, sequence, progression fosheicheamh = subsequence

Etymology: from Proto-Indo-European *sékʷetor (to be following), from *sekʷ- (to follow) [source]. Words from the same Proto-Celtic root, via Gaulish (?) and Latin segusius (a hunting dog) include: sabuxo (hound) in Galician, segugio (hound, bloodhound, private eye, sleuth) in Spanish, and sabujo (hound, submissive person) in Portuguese [source].

Words from the same PIE roots include: associate, sector, sequence, society, (to) sue, suit, suite and subsequent in English, suivre (to follow) in French, sèkti (to observe, track down, follow, spy on) in Lithuanian, and seguir (to follow, continue, keep (on)) in Spanish [source].

Middle Cornish (Cernewec)	sewye, sewé, sywé = to follow, persue
Cornish (Kernewek)	sewya = to follow, result holyans = consequence, outcome, result, sequel

Etymology: from English (to) sue [source], which used to mean to follow or court, and comes from Middle English seuen (to follow, walk behind, be guided), from Anglo-Norman suer, siwer (to follow), from Old French sivre (to follow after), from Vulgar Latin *sequere (to follow), from Latin sequī, from sequor (to follow, pursue, succeed), from Proto-Italic *sekʷōr (to follow, come/go after), from Proto-Indo-European *sekʷ- (to follow) [source].

Proto-Celtic	linati = to stick, cling ati-linati = to adhere, stick to, cling
Old Irish (Goídelc)	lenaid [ˈl͈ʲenɨðʲ] = to stick, cling, follow, remain, continue, survive lenamain = adhering, clinging, following ad·len = to follow, adhere
Middle Irish (Gaoidhealg)	lena(i)d = to remain, continue, survive, pursue, persist, cleave to, cling to, adhere to, stay with, follow len(a)main = adhering, clinging to, stuck in, following, pursuing ad·len = to follow, adhere
Irish (Gaeilge)	lean [lʲan̪ˠ] = to follow, continue, remain, endure leantach = consecutive, continuing leantóir = follower, trailer leanúint = following, persuit, adherence, continuation leanúnach = follower, pursuer, successor, continuant, continuous, successive leanúnachas = continuity, attachment, faithfulness
Scottish Gaelic (Gàidhlig)	lean [l̪ʲɛn] = follow, pursue, ensue, succeed, follow, continue, go on, stick to leanachd [l̪ʲɛnəxg] = following, pursuing, pursuit, followers, ensuing, succeeding, continuing leanadail [l̪ʲɛnədal] = attendant leanailteach [l̪ʲɛnnaldʲəx] = adhesive, sticking, sticky, dogged, persistent, tenacious leanailteachd [l̪ʲɛnaldʲəxg] = continuity, perseverance, tenacity, adhesiveness, adhesion leanaltas = perseverance
Manx (Gaelg)	lhian(t) = to follow lhiantag = attachment lhiantyn = following lhiantyn da/gys = to cleave (to) lhiantyn hug = to attach, obsess lhiantyn huggey = to take after lhiantyn rish = to cleave, persevere, pursue, stick to, cling lhiantys = adherence, attachment lhiantynys = adhesion, attachment
Proto-Brythonic	*llɨnad = to stick, cling
Old Welsh (Kembraec)	linisant = to infect, defile, corrupt, be infectious, smear
Middle Welsh (Kymraec)	llynu = to infect, defile, corrupt, be infectious, smear edlynv, eddlynu, edlynu = to smear, besmear, daub, slabber, befoul
Welsh (Cymraeg)	llynaf, llynu = to infect, defile, corrupt, be infectious, smear edlynaf, edlynu = to smear, besmear, daub, slabber, befoul

Etymology: from Proto-Indo-European *h₂leyH- (to smear) [source]. Words from the same PIE root include lime, liniment, loam and delete in English, lijm (glue) in Dutch, limon (silt) in French, Leim (glue) in German, limo (mud, slime, silt) in Italian, and lim (glue) in Swedish [source].

Proto-Celtic	*solgos = ?
Middle Welsh (Kymraec)	olhau = to follow, trace
Welsh (Cymraeg)	olhaf, olhau = to follow, trace
Middle Cornish (Cernewec)	holye = to come after, to follow
Cornish (Kernewek)	holya = to follow holyans = sequence holyer, holyores = follower
Old Breton (Brethonoc)	hol = (act of) following
Middle Breton (Brezonec)	heul = following heultaff = to follow
Breton (Brezhoneg)	heul [høːl] = continuation, cortege, parade, escort, procession heuli(a)ñ [ˈhøljã] = to follow heul(iad) [ˈhø.ljat] = procession, line, sequence, continuation, series, train heuliadur = extension heuliata = to continue heuliataer = follower heulier = follower, adept, minion heulius = conformist

Etymology: from Proto-Indo-European *selgʰ- (to follow) [source].

Larches

8th January 2025 By Simon

Words for larch (tree) and related things in Celtic languages.

The larch is a coniferous tree of the genus Larix with deciduous leaves in fascicles (bundles, clusters) [source]. There are various species of larches found in Europe, Siberia, Canada, the USA, China and Japan [source].

Words marked with a * are reconstructions.

Irish (Gaeilge)	learóg = larch crann learóige = larch tree
Scottish Gaelic (Gàidhlig)	learag [l̪ʲɛrag] = larch craobh-learaig = larch tree learach [l̪ʲɛrəx] = larch wood learagach [l̪ʲɛragəx] = abounding in larch trees
Manx (Gaelg)	lhiarrag = larch larsh = larch
Welsh (Cymraeg)	lar(t)s = larch (tree), made of larch-wood, larchen, consisting of larches llarsbren = larch tree llar(s)wydd = larches, larch trees
Cornish (Kernewek)	lar(ch)wedhen = larch

Etymology: from Ancient Greek λάριξ (lárix – larch, Venice turpentine*), possibly from Gaulish *devro (oak?), from Proto-Celtic *daru (oak), from Proto-Indo-European *dóru (tree). The Welsh and Cornish words, and larsh in Manx, come from the same roots via English [source].

*Venice turpentine = A thick substance made from the tree resin of the European larch (Larix decidua), formerly used as a component in the oil paintings to create glossy, translucent glazes [source].

Alternatively, according to Vitruvius (a Roman architect and engineer), larix in Latin was named after Larignum, a town in the Alps surrounded by larch trees which the Romans, lead by Julius Ceasar, beseiged in the 1st century AD when they refused to provide supplies [source].

The English word larch comes from the same roots, via early modern German Larche/Lärche (larch), from Middle High German larche, from Old High German larihha, from Latin larix (larch), from Ancient Greek λάριξ [source].

Words from Latin larix (larch) in other languages include: làrix in Catalan, lariks in Dutch, Lärche in German, ლარიქსი (lariksi) in Georgrian, mélèze in French and lærk in Danish, all of which mean larch (tree) [source].

Larch in Breton is melez, which comes from French mélèze (larch), which comes from Gaulish *mel- (larch) and Latin larix (larch) [source].

Dutiful Laws

30th December 20246th February 2025 By Simon

Words for duty, debt, law, rule and related things in Celtic languages.

Scottish Parliament / Pàrlamaid na h-Alba / Scots Pairlament

Words marked with a * are reconstructions.

Proto-Celtic	*dligeti = to be entitled to, be obligated to
Old Irish (Goídelc)	dligid = to deserve, merit, be entitled to
Middle Irish (Gaoidhealg)	dligid, dleagaid = to be entitled to, have a right to, be owed, deserve, merit
Irish (Gaeilge)	dligh [dʲlʲɪɟ/dʲlʲiː] = to be entitled to, have a right to, deserve, merit, be incumbent on, be liable to, ought to
Scottish Gaelic (Gàidhlig)	dligh [dli] = owe, be due dleas [dles] = deserve, merit, due dleasach [dlesəx] = deserving, meriting dleasadh [dlesəɣ] = (act of) deserving, meriting dleasannas [dlesən̪ˠəs] = obligation, duty dleasanta [dlesən̪ˠdə] = deserving, meriting dleasnach [dlesn̪ˠəx] = dutiful dleastanas [dlesdənəs] = obligation, duty
Manx (Gaelg)	toill = to deserve, will toillchin = to deserve, earn, merit, reward; derserving, worthy toillchinagh = deserving, meritorious toillchinys = desert, merit toillchyn = to deserve, merit toilliu = to deserve, earn, merit; deserving, worthy
Proto-Brythonic	*dɨlɣɨd = ?
Middle Welsh (Kymraec)	deleu, dyly, dylu = to be obliged to, ought, be indebted, behove, owe, be in debt, have a right to, claim, merit, deserve, posses, claim from
Welsh (Cymraeg)	dylu [ˈklɛðɨ̞v/ˈkleːðɪv] = to be obliged to, ought, be indebted, behove, owe, be in debt, have a right to, claim, merit, deserve, posses, claim from (other forms include: dylaf, dylÿaf, dlyaf, dylÿu, dlyu, dleu, deleu)
Middle Cornish (Cernewec)	dely, dylly = to owe, deserve
Cornish (Kernewek)	tyli = to owe, pay, reward tylva = checkout, till
Middle Breton (Brezonec)	dleout = must
Breton (Brezhoneg)	dleout [ˈdleː.ut] = to have to, must, owe dleañ = to have to, must, owe; judicious

Etymology: from Proto-Indo-European *dʰlégʰ-ti/*dʰl̥gʰ-énti, from *dʰlegʰ- (to beat, strike) [source]. Words from the same PIE roots possibly include dolog (thing, object, affair, business, task, fate) in Hungarian, dług (debt, account payable) in Polish, долг (dolg – debt, duty, obligation) in Russian, and dlh (debt) in Slovak [source].

Proto-Celtic	*dligetom = duty, debt
Old Irish (Goídelc)	dliged, dligeth [ˈdʲlʲiɣʲeð] = law, principle, rule, theory, dictum dlecht = lawful dligthech = lawful, right
Middle Irish (Gaoidhealg)	dliged, dligeth, dleged = law, principle, rule, norm, dictum, reason, argument, reckoning, nature, condition, kind, manner dligedach = lawful dligemnas = lawful right dligthech = regular, right, lawful, law-abiding, rational, reasonable, just, righteous dligthe(m)nach, dligtheanuigh = lawgiver dligtheoir = lawyer, man of law
Irish (Gaeilge)	dlí [dʲlʲiː] = law, divine precept, scientific principle, litigation dlíodóir = lawyer dlíodóireacht = practice of law, practising law dlíthí = litigant dlíthíoch = litigious dlíthíocht = litigiousness dlíthiúil = legal, juridicial, lawful, litigious dlíthiúilacht = legality, lawfulness dleacht = due, lawful right, royalty, patent dleathach = lawful, legal, valud, genuine, just, proper dleathaíocht = legality, justice, propriety
Scottish Gaelic (Gàidhlig)	dlighe [dli.ə] = ordinance (in law), due dligheach [dli.əx] = lawful, legitimatem rightful, right, due, dutiful, just dligheachas [dli.əxəs] = lawful right, jurisdiction, validity dligheachd [dli.əxg] = legality, royalty (payment) dligheadh [dli.əɣ] = (act of) owing, being due, stipend dlighear [dli.ər] = lawyer, creditor dligheil [dli.al] = legitimate, lawful, rightful
Proto-Brythonic	*dlɨɣed = (?)
Middle Welsh (Kymraec)	delehet, deleed, dylyet, dlyet, dylet = debt, due, claim, right, demand, oblitation, duty dylyedawc, dylyedauc, dylyedaỽc dyledawg = noble, privileged, dignified, illustrious, rightful dyledogaeth, dlyedogaeth = nobility, lordship, proprietorship dylyedus, dyledus = due, proper, meet, lawful, worthy, just, necessary, requisite, owing, in debt, indebted dyledwr = debtor, defaulter, trespasser
Welsh (Cymraeg)	dyled [ˈdəlɛd] = debt, due, claim, right, demand, oblitation, duty, service, heritage, estate, worth, privilege, sins, transgressions, trespasses [also written dylêd, dled, dylyed, dlyed] dyled(i)ach = trifling debts, dribbling debts dyledu = to owe, be due, debit, make due dyledog = indebted, in debt, due, noble, privileged, dignified, illustrious, debtor dyl(y)edus = due, proper, meet, lawful, worthy, just, necessary, requisite, owing, in debt, indebted, noble, privileged, dignified, reasonable, sensible, understanding dyledwr = debtor, defaulter, trespasser
Middle Breton (Brezonec)	dle = due, owing dleat = moral duty, tax
Breton (Brezhoneg)	dle = due, owing, debt dlead = moral duty, tax dleatour = debtor dleapl = liable dleoniezh = ethics d(e)leour = debtor, creditor

Etymology: from Proto-Celtic *dligeti (to owe, be indebted to) – see above [source].

Proto-Celtic	*ká(g)ni- = tribute, law
Old Irish (Goídelc)	cáin [kaːnʲ] = law, regulation, rule, fine, tax, tribute, legal due
Middle Irish (Gaoidhealg)	cáin, cain = law, regulation, rule, fine, tax, tribute
Irish (Gaeilge)	cáin [kɑːnʲ/kaːnʲ] = law, regulation, rule, due, tribute, fine, penalty, impost, tax cáinaisnéis = budget cáinaisnéiseach = budgetary
Scottish Gaelic (Gàidhlig)	càin [kaːn̪ʲ] = duty, tariff, tribute, fine; body of laws (archaic) càin-aisneis = budget càineach, càinear, càiniche = tax/excise collector, tax gatherer càineachadh [kaːn̪ʲəxəɣ] = (act of) imposing a tax

Etymology: possibly from Proto-Indo-European *keh₂/₃ǵ-n- [source]. Words from the same root may include kázeň (discipline) in Czech, kaźń (execution, torture, torment) in Polish, and kázeň (sermon, discipline) in Slovak [source].

Old Irish (Goídelc)	cís = tax, tribute
Middle Irish (Gaoidhealg)	cís, cis, cíos = tax, tribute, cess, rent císach = receiving or exacting tribute císaige = tributary, rent-payer císugud = paying tribute
Irish (Gaeilge)	cíos [ciːsˠ] = rent, price; tax tribute (historical) cíosach = rent-paying, tributary cíosaí = rent-payer cíosaigh = to rent, pay rent for, compensate for cíoscháin = tribute cíoscheannach = hire-purchase
Scottish Gaelic (Gàidhlig)	cìos [kʲiəs] = tribute, tax cìs [kʲiːʃ] = tax, levy cìsachadh [kʲiːʃəxəɣ] = taxing, taxation cìsachas [kʲiːʃəxəs] = taxation cìseadair [kʲiːʃədɪrʲ] = exciseman cìsear [kʲiːʃər] = tax/excise collector, tax gatherer
Manx (Gaelg)	keesh = custom, duty, tax, toll, tribute, contribution keeshagh = assessable, taxable, tributary keeshyn = taxation, taxes, tribute, dues

Etymology: from Latin cēnsus (census, register, rich gifts, presents, wealth), from cēnseō from Proto-Italic *kensēō (to give an opinion), from *kensējō, from Proto-Indo-European *ḱenséh₁-ye-ti, from *ḱens- (to announce, proclaim, put in order). Words from the same roots may include census in English, censo (census, wealth) in Italian, Zins (interest, tribute) in German, and czynsz (rent) in Polish [source].

Proto-Celtic	rextus = rule, law kom-rextus = law (?)
Celtiberian	Retukeno = personal name
Gaulish	Rextugenos = personal name
Old Irish (Goídelc)	recht, rect [r͈ʲext] = law rechtach = law-giving rechtaid = lawgiver rechtaide = legal rechtaigid = to legislate rechtaire = steward rechtas = stewardship rechtge = government rechtmar = lawful
Middle Irish (Gaoidhealg)	recht, rect, reacht = law, authority, rule, right, lawfulness rechtach = just, equitable, law-giving rechtaid, rechtaidh = judge, lawgiver rechtaide = legal, pertaining to the law, lawful rechtaigid = to legislate rechtaire, rechtorairge = steward, baliff, administrator, judge (?) rechtas, rechtus, rechtcus = authority, administration, stewardship rechtge, rechtga = government, authority, rule, regin rechtmar = lawful, legitimate
Irish (Gaeilge)	reacht [ɾˠaxt̪ˠ] = law, statute, accepted rule reachtach = law-giving, legislative reachtaigh = to legislate, enact, decree reachtaíocht = legislation reachtaire = controller, administrator, steward, Rector, auditor, master of ceremonies reachtas = administration, stewardship reachtmhar = lawful, legitimate reachtóir = lawgiver, legislator reachtúil = statutory, statute
Scottish Gaelic (Gàidhlig)	reachd [r̪ˠɛxg] = decree, statue, edict reachdach [r̪ˠɛxgəx] = compulsory reachdachadh [r̪ˠɛxgəxəɣ] = (act of) legislating, law-making, legislature reachdadair [r̪ˠɛxgədɪrʲ] = lawmaker, legislator reachdadaireachd [r̪ˠɛxgədɪrʲəxg] = legislature reachdail [r̪ˠɛxgdal] = legislative, statutory reachdas [r̪ˠɛxgəs] = legislation
Proto-Brythonic	rreiθ = rule, law kuβ̃reiθ = law (?)
Middle Welsh (Kymraec)	reyth, reith, rhaith = law, rule, decree, rightness, justice, right (to smth), recompense, atonement, judgement, verdict cyfreith, kiureith, kefreyth [ˈkəvrai̯θ] = law, rule, decree, rightness, justice, right (to smth), recompense, atonement, judgement, verdict
Welsh (Cymraeg)	rhaith [r̥ai̯θ] = law, rule, decree, rightness, justice, right (to smth), recompense, atonement, judgement, verdict rhaithgor = jury cyfraith [ˈkəvrai̯θ] = law, legislation, statute, custom, usage, jurisprudence
Cornish (Kernewek)	reyth = regular, right, religious law reythennek, reythednek = statutory reythen = statute reythe = to authorise, codify, empower, entitle, qualify reythes = authorised, empowered, enacted, entitled, qualified reythyans = enactment, jurispridence, lawmaking, legislation
Old Breton (Brethonoc)	reith = law
Middle Breton (Brezonec)	rez, reiz = law rezder = law
Breton (Brezhoneg)	reizh = right, just, correct, order, normal reizhad = regular reizhadenn = rectification, corrected reizhadur = adjustment reizhan = to correct, adapt, regular, initiate reizhded = correctness, rectitude, normality reizhder = regularity reizhegezh = legitimacy reizhek = legitimate reizhekaat = to legitimize reizhennan = to regulate reizhus = legal

Etymology: from Proto-Indo-European *h₃reǵ- (to straighten, to righten) [source]. Words from the same PIE root include rail, rank, realm, regime, rule and regulation in English, rę́žti (to stretch) in Lithuanian, règle (rule, regulation) in French, and regla (rule, ruler) in Spanish [source].

Old Irish (Goídelc)	ríagal, ríagul = rule
Middle Irish (Gaoidhealg)	ríagal, riagoil, riaguil = rule, authority
Irish (Gaeilge)	riail [ɾˠiəlʲ] = rule, regulation, principle, sway, authority, order rialachán = regulation rialúchán = regulation, control
Scottish Gaelic (Gàidhlig)	riaghail [r̪ˠiə.al] = rule, govern, administer riaghailt [r̪ˠiə.əldʲ] = rule, regulation, government riaghailteach [r̪ˠiə.əl̪ˠdʲəx] = regular, according to rule, orderly riaghailteachadh [r̪ˠiə.aldʲəxəɣ] = (act of) formulating, regulating, adjusting, adjustment riaghailteachas [r̪ˠiə.aldʲəxəs] = regulatory riaghailteachd = regularity, moderation riaghailtear [r̪ˠiə.aldʲər] = regulator riaghailtearachd [r̪ˠiə.aldʲərəxg] = administration riaghal [r̪ˠiə.əl̪ˠ] = rule
Manx (Gaelg)	reill = code, dominion, governance, policy, principle, reign; to charge, govern, order, regulate, rule reilley = to regulate, reign, rule; ruling reilleyder = governor, regulator, ruler, straight edge reilt = normal, to rule reiltagh = director, ordinal, president, rector, ruler; decisive, ruling, regular reiltys = governance, rule, kingdom, dominion, government
Proto-Brythonic	*rreɣol = rule (?)
Middle Welsh (Kymraec)	ryol, reol, rhwol = rule, regulation, procedure, order, custom, pattern, government, dominion rhyolaeth, reolaeth = rule, control, management, authority, discipline rwyoli, reoli, ryoli, rhywoli = to rule, control, direct, govern roliad = rule, control, government ryolus, reolus, rheolus, rreolys = regular, orderly, disciplined, moderate, consant
Welsh (Cymraeg)	rheol [ˈr̥eː.ɔl] = rule, regulation, procedure, order, custom, pattern, government, dominion rheol(i)aeth = rule, control, management, authority, discipline rheoli = to rule, control, direct, govern rheolaidd = regular, regulated, orderly rheoliad = rule, control, government rheolus = regular, orderly, disciplined, moderate, consant
Middle Cornish (Cernewec)	reol, rowl, rovle = rule, government rowler = ruler, governor
Cornish (Kernewek)	rewl, rowl = regulation, rule rewlya, rowlya = to control, regulate, rule rewlyades, rowlyades = ruler (f) rewlyas, rowlyas = ruler (m) rewlys = regular
Old Breton (Brethonoc)	regul = rule, regulation
Middle Breton (Brezonec)	reul, reol, reoll = rule, regulation reulenn = rule reulennaff = to regulate
Breton (Brezhoneg)	reol = rule, principle, regime reolennadur = regulation reolennan = to regulate reoliadur = regulation reoliata = to regulate reoliek = regular reolius = regulatory

Etymology: from Latin rēgula (rule, bar, ruler), from regō (I rule, govern, direct, guide, steer, control), from Proto-Italic *regō, from Proto-Indo-European *h₃réǵeti (to be straightening, to be setting upright), from *h₃reǵ- (to straighten, to righten) – see above [source].

Scottish Gaelic (Gàidhlig)	lagh [l̪ˠɤɣ] = law laghachd [l̪ˠɤɣəxg] = legislation laghadh [l̪ˠɤɣəɣ] = legalising, legalisation laghaiche [l̪ˠɤɣɪçə] = lawyer, solicitor laghaichte [l̪ˠɤɣɪçdʲə] = legalised laghail [l̪ˠɤɣal] = legal, lawful, litigious, argumentative laghaileachd [l̪ˠɤɣaləxg] = lawfulness, legality
Manx (Gaelg)	leigh = enactment, law, respect leighagh = legal, litigious leighder = lawyer, advocate, attorney, barrister, council leighoil = lawful, legal, legislative, legitimate

Etymology: from English law, or Middle English lawe/laȝe (law, regulation, morality), or Old English lagu (law, rule, right), all of which come from Old Norse lǫg (law, rule, right), from Proto-Germanic *lagą (situation, law, a settled amount), from Proto-Indo-European *legʰ- (to lie [down]). The English words lie and lay come from the same roots [source].

Swords & Spikes

20th December 20242nd April 2025 By Simon

Words for sword and related things in Celtic languages.

Words marked with a * are reconstructions.

Proto-Celtic	*kladiwos = sword
Gaulish	*kladyos = sword
Old Irish (Goídelc)	claideb = sword
Middle Irish (Gaoidhealg)	claideb, claidem, claidhmhe, cloideb = (slashing) sword
Irish (Gaeilge)	claíomh [kl̪ˠiːvˠ/kl̪ˠiːw] = sword claíomhchruthach = sword-shaped, xiphoid claíomhóir = swordsman claíomhóireacht = swordsmanship
Scottish Gaelic (Gàidhlig)	claidheamh [kl̪ˠajəv] = sword claidheamhach [kl̪ˠajəvəx] = pertaining to or abounding in swords claidheamhair [kl̪ˠajəvɛrʲ] = swordsman claidheamhaireachd [kl̪ˠajəvɛrʲəxg] = fencing, sword-fighting, swordsmanship, sparring claidheamhan [kl̪ˠajəvan] = little sword, icicle, snot, door-bolt, latch
Manx (Gaelg)	cliwe = sword cliweagh = sword-like, ensiform cliweaght = swordplay cliweder = swordsman cliwederahgt = fencing cliwederys = swordmanship cliwedeyr = fencer cliwenys = swordsmithing, sword-making
Proto-Brythonic	*klėðɨβ̃ = sword
Middle Welsh (Kymraec)	clety(u)w, cled(d)yf = sword cledyual, cledyf(u)al = sword-stroke or thrust cletifhir, cledyfhir = having a long sword cledyfawt, cleddyfawd = sword-stroke or thrust, gash, wound cletyuawc, cledyfawc = armed with sword(s), swords, sharp, cruel
Welsh (Cymraeg)	cleddyf [ˈklɛðɨ̞v/ˈkleːðɪv] = sword, blade, brace (on a door or wall) cleddyfaeth = swordsmanship, fencing cleddyfu, cleddyfa(f) = to slay with the sword, to put to the sword cleddyfal = sword-stroke or thrust cleddyfan = dagger, poniard, hanger cleddyfod = sword-stroke cleddyfwr = swordsman cleddyfydd = sword-cutler, sword-smith, swordsman cleddyfyddiaeth = swordsmanship, art of fencing
Middle Cornish (Cernewec)	cledhe, cledhé, cledha = sword
Cornish (Kernewek)	kledha = sword kledhya = fencing
Middle Breton (Brezonec)	clezef(f), cleze = sword
Breton (Brezhoneg)	kleze [ˈkleː.ze] = sword, glaive klezen/klezeñ = sword klezeiad = ironworker, gladiator klezeniata = ironworker klezenour = swordsman

Etymology: from Proto-Celtic *kladeti (to stab, dig), from Proto-Indo-European *kl̥h₂dʰ-é-ti, from *kelh₂- (to beat, strike) [source].

Words from the same Proto-Celtic roots, via Gaulish *kladyos, possibly include gladius (sword, murder, death, a gladiatorial contest, swordfish) in Latin, gladiator, gladiolus and glaive (a light lance with a long, sharp-pointed head) in English, esglai (fright) in Catalan, ghiado (sword, dagger, knife, frost, cold) in Italian, gládio (sword, power, strength) in Portuguese, and gladio (bulrush, cattail) in Spanish [source].

Words from the same PIE roots include calamity, clade, clergy, cleric, clerk, coup, and glaive in English, clava (club) in Spanish, колоть (to split, cleave, break, stab) in Russian, and words for to dig and bury and related things in Celtic languages [source].

Proto-Celtic	*kolgā = a stabbing weapon, like a dagger
Old Irish (Goídelc)	colg = sword, pointed thing
Middle Irish (Gaoidhealg)	colg, calg, cailg = anything pointed, piercing instrument, sword, rapier, sting, stabe, thrust, awn of barley or wheat colgach = fierce, bristling colgad = act of piercing colgdae = pointed, fierce
Irish (Gaeilge)	colg [ˈkɔl̪ˠəɡ] = sword (literary), blade, point (of sword), beard, awn, bristle, dorsal fin colgach = bearded, bristling, angry colgaí = prickliness, irritability colgán = sharp point, prickle, bristle, sword-fish
Scottish Gaelic (Gàidhlig)	colg [kɔl̪ˠɔg] = pig bristle, beard of barley, needle (of conifer), prickle colgach [kɔl̪ˠɔgəx] = bristly, prickly colgachd [kɔl̪ˠɔgəxg] = prickliness
Manx (Gaelg)	caulg = barb, bristle, prickle, ruffle caulgagh = barbed, bearded, bristly, prickly caulgid = bristliness, prickliness; snappish, snappishness
Proto-Brythonic	*kolɣ = (?)
Middle Welsh (Kymraec)	col, coly, kola = awn, beard of corn, husks, chaff, spike, prickles, sting, hinge
Welsh (Cymraeg)	col, coly, cola [kɔl] = awn, beard of corn, husks, chaff, spike, prickles, sting, hinge
Middle Cornish (Cernewec)	col, culu, culhu = any projecting body or pointed hill, a peak, promintory, awn, beard of corn
Cornish (Kernewek)	kolgh = spike
Middle Breton (Brezonec)	colch = awn, beards of cereal
Breton (Brezhoneg)	kolc’h = awn, beards of cereal

Etymology: possibly from Proto-Indo-European *kelh₂- (to beat, break) – see above [source].

Awn [ɔːn] = the bristle or beard of barley, oats, grasses, etc. or any similar bristlelike appendage – see below [source].

Proto-Celtic	*tarankyos = nail
Gaulish	*tarankā = (?)/td>
Old Irish (Goídelc)	tairnge = nail, spike, peg
Middle Irish (Gaoidhealg)	tairnge = spike, point, nail, peg tairnged = act of nailing
Irish (Gaeilge)	tairne [ˈt̪ˠɑːɾˠn̠ʲə / ˈt̪ˠaːɾˠn̠ʲə] = nail tairneoir = nailer
Scottish Gaelic (Gàidhlig)	tàirng [taːr̪ˠŋʲgʲ] = nail tarrag [tar̪ˠag] = nail, spike tarrang [tar̪ˠəŋg] = nail, pin tàirngeach [taːr̪ˠn̪ʲəx] = pertaining to or abounding in nails tàirngeachadh [taːr̪ˠn̪ʲəxəɣ] = (act of) nailing, fixing with nails
Manx (Gaelg)	treiney = nail treinaghey = to nail down

Etymology: from *terh₁- (to drill, rub, turn, pierce) [source]. Words from the same Proto-Celtic root, via Latin *taranca (large iron pin), include tranca (thick bar of wood, door bolt, drunkenness) in Spanish, tranca (bar, door bolt) in Portuguese, and tranca (bar, door bolt, salmon) in Catalan and Galician [source].

Words from the same PIE root include trito (chopped, crushed, minced, ground, trite, commonplace, threadbare) in Italian, trite in English, trigo (wheat) in Portuguese and Spanish, tribouler (to tumble) in French, and трие (trie – to rub) [source].

Gritty Gravel

11th November 202411th November 2024 By Simon

Words for gravel, grit and related things in Celtic languages.

Words marked with a * are reconstructions.

Proto-Celtic	*griyano- = gravel
Old Irish (Goídelc)	grïan [ˈɡʲrʲi.an] = gravel, sand, river bottom, sea floor grindell = gravel, lake bed, sea bed
Middle Irish (Gaoidhealg)	grian, grían = gravel, sand, sea or river bottom, basis, foundation, earth, land grenach, grenaig = gravel grindell, grinnell, grinneal = sea or lake bed, gravel, bedrock, foundation, floor, bottom
Irish (Gaeilge)	grean [ɟɾʲan̪ˠ] = gravel, grit, coarse sand; to engrave grian = (sea, lake, river) bottom, earth, surface grianach = gravelly greanach = gravel, gravelly spoil, gritty greanadh = engraving, shapeliness, shape, figure greanadóir = engraver greanadóireacht = engraving greanchloch = gritstone, millstone grineall = (sea, lake, river) bed, bedrock, depth, foundation
Scottish Gaelic (Gàidhlig)	grean [grʲɛn̪] = (river / lake) bed, gravel, coarse sand grean-aibhne = riverbed grinneal [grʲin̪ʲəL] = gravel, grit, (river / sea) bottom grinnealach = deep, gulfy, gravelly, sabulous (sandy or gritty) grinnealachd = grittiness
Manx (Gaelg)	grineen = bead, granule, grit, pinch grineenagh = gritty, grained, grainy, granulated, granulous grineenid = grittiness
Middle Welsh (Kymraec)	graean, grayan, graeeyn = gravel, coarse sand, shingle, grit, grain, granule graenauc, graeanog, graianoc = gravelly, full of gravel, harsh, grating
Welsh (Cymraeg)	graean [ˈɡreɨ̯.an / ˈɡrei̯.an] = gravel, coarse sand, shingle, grit, grain, granule grae(a)nog = gravelly, full of gravel, harsh, grating graeanu = to (spread) gravel (over), to granulate, scour, grit

Etymology: uncertain, possibly related to Proto-Celtic *grāwā (gravel, pebbles) – see below [source].

Proto-Celtic	*grāwā = gravel, pebbles
Irish (Gaeilge)	griothal = gravel, gravelly soil griothalach = gravelly, gritty
Scottish Gaelic (Gàidhlig)	grothal = gravel
Proto-Brythonic	*grọw = gravel, pebbles
Old Welsh (Kembraec)	gro = gravel, shingle
Middle Welsh (Kymraec)	gro = gravel, shingle grodir, gro dir = gravelly land, sandy soil, grave
Welsh (Cymraeg)	gro [ɡroː] = gravel, shingle, gravelly shore, strand grobwll = gravel pit, grave grodir = gravelly land, sandy soil, grave
Old Cornish	grou = gravel, sand
Middle Cornish (Cernewec)	grow = gravel, sand
Cornish (Kernewek)	grow = gravel growan = granite growanen = pebble growen = gravel
Middle Breton (Brezonec)	grean, grouan = gravel grouanec = gravelly, grave pit groanenn = piece of gravel
Breton (Brezhoneg)	grouan [ˈɡruːãn] = gravel grouanañ = to engrave grouaneg = gravelly, grave pit grouanenn = piece of gravel grouanus = gravelly

Etymology: from Proto-Indo-European *gʰroh₁weh₂, from *gʰreh₁w- (to grind).
Words from the same Proto-Celtic roots include grava (gravel) in Catalan, grève (flat, sandy land along the sea or a large river) in French, grava (gravel) in Spanish, and grave (gravel, shore, gravelly ground) in Occitan [source].

Words from the same PIE roots include: grit, groat, grout and gruel in English, Grieß (semolina) in German, grjót (coarse stones, rubble) in Icelandic, gryt (a badger’s sett, a fox’s den) in Swedish, riutta (reef) in Finnish, and grúodas (frozen mud or earth) in Lithuanian [source].

Middle Irish (Gaoidhealg)	graibél = gravel, sand
Irish (Gaeilge)	gairbhéal = gravel gairbhéalach = gravelly gairbhéalta = gravelled
Scottish Gaelic (Gàidhlig)	greabhal = gravel
Manx (Gaelg)	garvel = gravel
Middle Welsh (Kymraec)	grafel, gravael, gravel = gravel
Welsh (Cymraeg)	graf(a)el = gravel grafelu, grafaelio = to sprinkle with gravel, make sore by chafing graf(a)eliog = gravelly

Etymology: from English gravel or Middle English gravel / gravail(le) (sand, gravel, shingle, pebbles), from Old French gravele (gravel), a diminutive of grave (gravel, seashore), from Medieval Latin grava, possibly from Gaulish grava, from Proto-Celtic grāwā (gravel, pebbles), from Proto-Indo-European *gʰroh₁weh₂, from *gʰreh₁w- (to grind) [source].

Deeply Profound

16th October 202416th October 2024 By Simon

This post peers into the depths of some deeply profound words in the Celtic languages.

Proto-Celtic	dubnos (adj) = deep dubnos (noun) = world Dubnowalos = a male given name* – “world prince / chief” Dubnogenos = a male given name* – “world born / family”
Gaulish	dumnos = deep Dubnorīx = a male given name – “world king”
Primitive Irish	ᚇᚑᚋᚅᚌᚓᚅ (domngen), ᚇᚑᚋᚅᚌᚔᚅᚅ (domnginn) = male given names
Old Irish (Goídelc)	domain = deep, profound, depth(s), sea-floor fudumain = profound(ity), depth Domnall = a male given name Domaingen = a male given name
Middle Irish (Gaoidhealg)	domain, doimin, domun, domuin = deep, profound, intense, thoughtful, depth(s) doimnigid = to deepen, lower domne, domnae = depth(s) domun = the world, the earth Domnall = a male given name
Irish (Gaeilge)	domhain [d̪ˠɑinʲ/d̪ˠoːnʲ] = depth, deep, abyss, inmost part, profound, sunken, hollow, low-pitched, far, late domhainiascaireacht = deep-sea fishing domhainmhachnamh = deep thought, deep reflection doimhneacht = depth, deep place doimhnigh = to deepen doimhniúchan = (act of) deepening domhan = earth, world Domhnall, Dónall = male given names
Scottish Gaelic (Gàidhlig)	domhain [dõ.ɪn̪ʲ] = deep, profound domhaineachd [dõ.ɪn̪ʲəxg] = depth, deep, deepness, profundity domhainteachd [dõ.ɪn̪ʲdʲəxg] = abstruseness domhan [dõ.an] = universe, world Dòmhnall = a male given name
Manx (Gaelg)	dowin = deep(ly), deep-rooted, involved, low, profound, secretive, thorough, penetrating diunaghey = to deepen diunid = deep, depth, gulf, rootedness dowan = world, earth, universe, cosmos
Proto-Brythonic	duβn/dumno = deep Duβnowal = a male given name* Duβnoɣen = a male given name*
Old Welsh (Kembraec)	duuin, dofn = deep Dumnagual = a male given name
Middle Welsh (Kymraec)	dowyn, duvin, dwvyn, dwfyn, dwuyn = deep, dense dyfnu, dyfnaf = to become accustomed (to), be familiar (with) dyfyn(n)der, dyuynder, dewfynder = depth(s), deepness dyfnddysc = erudite, profound, erudition, deep learning dyuynvor = deep sea, main, ocean dyfynhau = to deepen, dig, excavate, intensify Dyuynwal, Dyvynwal, Dyfynwal = male given names*
Welsh (Cymraeg)	dwfn, dyfn [dʊvn] = deep, dense, mysterious, intense, serious, profound; depth(s), deep waters, abyss, void; world, earth dyfnu = to become accustomed (to), be familiar (with), suck dyfnder = depth(s), deepness, bottom, thickness, abyss dyfnddysg = erudite, profound, erudition, deep learning dyfnfor = deep sea, main, ocean dyfnhau = to deepen, dig, excavate, intensify Dyfnaint = Devon Dyfnwal = a male given name Dyfnien = a male given name
Middle Cornish (Cernewec)	down = deep, profound, low downder = depth
Cornish (Kernewek)	down = deep downder = depth downfria = to deep-fry downhe = to deepen downrewi = to deep-freeze
Old Breton (Brethonoc)	dumn = deep
Middle Breton (Brezonec)	doun, don = deep dounhat = to deepen do(u)nder = depth
Breton (Brezhoneg)	don [dɔ̃ːn] = deep, hollow (plate, dish), serious (air) donaat = to deepen donañ [ˈdɔ̃ː.nã] = to deepen donded [ˈdɔ̃n.det] = depth donder [ˈdɔ̃n.dɛr] = depth Dunvel = a male given name

Etymology: from the Proto-Indo-European *dʰubʰnós (deep), from *dʰewbʰ- (hazy, unclear, dark, deep) [source]. Words from the same roots include deep and dip in English, tief (deep, low) in German, dopen (to dip, immerse, name) in Dutch, dùgnas (bottom, background) in Lithuanian, дно [dno] (floor, bed, bottom) in Russian, and words for black in Celtic languages

The names Donald and Dunaldur (used in Faroese) come from the Proto-Celtic name *Dubnowalos [source].

Celtiadur

Exploring connections between Celtic languages

Category: Gaulish

Malt

Breaking the Wind

Nights

Cressy

Pursuing Followers

Larches

Dutiful Laws

Swords & Spikes

Gritty Gravel

Deeply Profound