Whey

18th September 202518th September 2025 By Simon

Words for whey and related things in Celtic languages.

Words marked with a * are reconstructions.

Proto-Celtic	*mezgos = whey
Gaulish	*mesgos = whey (?)
Old Irish (Goídelc)	medc, medg [ˈmʲeðɡ] = whey
Middle Irish (Gaoidhealg)	medc, medg, midc = whey, serum
Irish (Gaeilge)	meadhg [ˈmʲəiɡ / ˈmʲaiɡ / ˈmʲeːɡ] = whey, serum, blood-serum – also written meidhg meadhgúil = consisting of whey, watery meadhguisce = whey-water
Scottish Gaelic (Gàidhlig)	meadhg [mjɤːg] = whey meang [mɛŋg] = whey meòg [mjɔːg] = whey meògach = of whey, like whey, serous meug [miag] = whey mìg [miːgʲ] = whey miong [mjɤ̃ŋg] = whey miùg [mjuːg] = whey
Manx (Gaelg)	meaig = whey meaighagh = whey-faced
Proto-Brythonic	*meið = whey
Middle Welsh (Kymraec)	medd, maidd, meid = whey meiddlyn = whey, buttermilk, posset
Welsh (Cymraeg)	maidd [mai̯ð] = whey, serum, curds and whey, blood serum meidda = to beg for whey meiddaidd, meiddl(l)yd = whey-like, wheyey, serous meiddioni = to curdle meiddlyn = whey, buttermilk, posset
Middle Cornish (Cernewec)	meith = whey
Cornish (Kernewek)	meydh = whey
Old Breton (Brethonoc)	meid = whey

Note: in Breton, whey is laezh-bihan (‘small milk’) – a calque of French petit-lait (whey), laezh-glas (‘blue/green milk’), gwipad or gwitod [source] and [source].

Etymology: from Proto-Indo-European *mosgʰos (marrow, brain). The Old French word mesgue (whey) comes from the same Proto-Celtic root, via Gaulish *mesgos [source].

Words from the same PIE roots include smadzenes (brain) in Latvian, भेजा (bhejā – brain, mind) in Hindi, মজ্জা (mojja – marrow) in Bengali, مغز (maġz – brain, marrow) in Persian, marrow in English, merg (marrow) in Dutch, Mark (marrow, pith) in German, and possibly mysa (whey) in Icelandic [source].

Just in case you’re wondering, whey [weɪ] is the liquid remaining after milk has been curdled and strained in the process of making cheese. It comes from Middle English whey(e) (whey), from Old English hwǣġ (whey), from Proto-West Germanic *hwaij (whey), perhaps from Proto-Indo-European *kʷey- (to pile up, build) [source]. It can be used to be used to make products like whey cheeses, such as ricotta, whey butter, and whey protein, which is sold as a dietary supplement popular with athletes and bodybuilders. [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

Swearing Oaths

13th August 202514th August 2025 By Simon

Today we’re looking at the words for oath, vow, (to) swear and related things in Celtic languages.

Words marked with a * are reconstructions.

Proto-Celtic	lug = oath lugyom = oath, swearing
Old Irish (Goídelc)	luige = oath, swearing lugae = oath luigid = to swear
Middle Irish (Gaoidhealg)	luige, lug, luga, lugae = oath, (act of) swearing lugach = given to swearing, assertive, contentious luigid, luigaid = to swear
Irish (Gaeilge)	luigh [l̪ˠɪɟ / l̪ˠiː] = to swear (literary) luighe = oath
Scottish Gaelic (Gàidhlig)	lùgh [l̪ˠuː] = swear! curse! lùghadh [l̪ˠuː.əɣ] = (act of) swearing, oath, (act of) cursing lùighe [l̪ˠuːjə] = (act of) swearing, oath, (act of) cursing
Manx (Gaelg)	loo [luː] = oath, swear(ing), affidavit looee = oath
Proto-Brythonic	*lluɣ = (?)
Middle Welsh (Kymraec)	llv, llw = (solemn) oath, vow, oath, swear word, curse, blasphemy
Welsh (Cymraeg)	llw [ɬuː] = (solemn) oath, vow, oath, swear word, curse, blasphemy
Cornish (Kernewek)	li = oath lia = to swear, take an oath
Old Breton (Brethonoc)	dilu = oath
Middle Breton (Brezonec)	le, lé = oath, blasphemy leanty = convent
Breton (Brezhoneg)	le [leː] = oath, swear, vow leañ [ˈleː.ã] = to swear, take an oath leandi [leˈãn.di] = convent

Etymology: from the Proto-Indo-European *lewgʰ- (to announce, tell, publicly) [source]. Words from the same roots include lie in English, liegen (to lie, tell lies) in Dutch, lügen (to tell a lie, to lie) in German, ljuga (to lie, to tell an untruth) in Swedish, łgać (to lie, feign, simulate) in Polish [source].

Proto-Celtic	tungeti = to swear (an oath) writ-tungeti = to counter-swear
Gaulish	toncsiiontio = (?)
Old Irish (Goídelc)	tongaid = to swear fristoing = to forswear
Middle Irish (Gaoidhealg)	tongaid, toṅga, tongu = to swear, take an oath
Scottish Gaelic (Gàidhlig)	tuinge = oath
Middle Welsh (Kymraec)	twng, twg = a swearing, oath tyngu = to swear (an oath) gurthtygho, gurhtuc, gvrthegho, gurthtug = to counter-swear
Welsh (Cymraeg)	twng, twnc = a swearing, oath tyngu = to swear (an oath) camdyngu = to swear falsely, forswear cytyngu = to swear together, take a mutal oath gwrthdyngu = to counter-swear
Middle Cornish (Cernewec)	ty = an oath, imprecation
Cornish (Kernewek)	ti = oath, vow, swear tia = to swear, vow
Middle Breton (Brezonec)	toeaff, touet = to swear, curse
Breton (Brezhoneg)	tou [tu:] = oath touiñ [ˈtuː.ĩ] = to swear, curse

Etymology: possibly from Proto-Indo-European *h₂lewgʰ- (to announce), or from PIE *th₂négti (to touch, grasp; to take), from *teh₂g- (to touch, take) [source].

Proto-Celtic	*mandu = mark, sign, spot
Old Irish (Goídelc)	mind [mʲin͈d] = crown, insignia, oath
Middle Irish (Gaoidhealg)	mind, minn = crown, diadem, oath, vow
Irish (Gaeilge)	mionn = crown, diadem, oath mionnach = swearing, given to swearing mionnadóir = swearer mionnaigh = to swear mionnú = swearing, adjuration mórmhionnach = addicted to swearing
Scottish Gaelic (Gàidhlig)	mionn [mjũːn̪ˠ] = oath, curse, (act of) cursing, insignia mionnaichte [mjun̪ʲɪçdʲə] = bound by oath, sworn, avowed mionnan [mjun̪ˠan] = (act of) swearing an oath, (act of) cursing, small curse mionnach [mjuːn̪ˠəx] = pertaining to or abounding in oaths or curses, swearing, sweary, cursing mionn [mjũːn̪ˠ] =
Manx (Gaelg)	mian = to wish mianey = to wish, desire, hanker, fancy, long, lust mynney = to swear, swear-word, imprecation, oath-book
Middle Welsh (Kymraec)	mann = spot, speck, blemish, stain, mark
Welsh (Cymraeg)	man [man] = spot, speck, blemish, stain, mark mannig = spot, dot, particle. breve (in music)

Etymology: uncertain [source], possibly from Proto-Indo-European *mend- (physical defect, fault) [source].

Old Irish (Goídelc)	móit = vow
Middle Irish (Gaoidhealg)	móit, móid = vow, oath, wish, desire
Irish (Gaeilge)	móid [mˠoːdʲ] = vow móidach = votary, votive móidghealladh = solemn promise, profession móidigh = to vow móidín = devotee
Scottish Gaelic (Gàidhlig)	mòid [mɔːdʲ] = oath, solemn promise, swearing, vow mòideachadh [mɔːdʲəxəɣ] = (act of) swearing, vowing

Etymology: from Latin vōtum (promise, dedication, vow, will, desire, prayer), from voveō (to vow, promise, dedicate), from Proto-Italic *wogʷeō (to vow, promise, dedicate), from Proto-Indo-European *h₁wogʷʰéyeti, from *h₁wegʷʰ- (to promise, vow, praise) [source].

First Things First

31st July 202531st July 2025 By Simon

Words for first, before, previous, and related things in Celtic languages.

first things first

Words marked with a * are reconstructions.

Proto-Celtic	kentus = first kentuslongos = early meal kentusamonyos, kintusamīnos, kintusamonis = beginning of summer, May kentusedom = first seat
Gaulish	cintus = first (?)
Old Irish (Goídelc)	cét- [ˈkʲeː.d] = first cétaín [ˈkʲeː.dai̯nʲ] = Wednesday (“first fast”) cétmuinter = spouse, wife cétnae = first, same cétóir = first time, beginning
Middle Irish (Gaoidhealg)	cét- [kax / kex] = first, early, primary, former cétad = seat, couch cétaín [ˈkʲeː.dai̯nʲ] = Wednesday cétlongad = fasting
Irish (Gaeilge)	céad [ciːa̯d̪ˠ / ceːd̪ˠ] = first Céadaoin [ˈceːd̪ˠiːnʲ] = Wednesday céalacan = moring fast
Scottish Gaelic (Gàidhlig)	ciad [kʲiad] = first ciadaineach [kʲiədɪn̪ʲəx] = pertaining to Wednesday, falling on a Wednesday DiCiadain [dʲɪˈkʲiədɪn̪ʲ] = Wednesday
Manx (Gaelg)	kied = first, primary, senior chied = first, initial, primary kied chouyr = first aid Crean = Mercury, Wednesday
Proto-Brythonic	kɨnt = earlier, sooner, before, former, previous kɨntüheð = porch, entry, court (?) *kɨntühaβ̃in = beginning of summer, first month of summer, May (?)
Middle Welsh (Kymraec)	cin, kin, kyn(n), cynn = before, previous to, preceding cynda(i)d = ancestor, forefather kynt, cynt = earlier, sooner, former(ly), previous(ly), before, quicker, faster, swifter, rather (than) kyn(n)hayaf, kynhaeaf, cynhaeaf = harvest(-time), autumn kantaf, kyntaf, kyntaw, kentaf = swiftest, quickest, fastest, fleetest, first, foremost, chief, principal cyntedd = porch, lobby, vestibule, entry, court, forecourt kintevin, kynteuin, kyntefin = beginning of summer, first month of summer, May, spring, summer kythlwng = fasting, hunger
Welsh (Cymraeg)	cyn [kɨ̞n / kɪn] = before, previous to, preceding cynt [kɨ̞nt / kɪnt] = earlier, sooner, former(ly), previous(ly), before, quicker, faster, swifter, rather (than) cyntaf = swiftest, quickest, fastest, fleetest, first, foremost, chief, principal cynhaeaf = harvest(-time), autumn cyntedd [ˈkəntɛð] = porch, lobby, vestibule, entry, court, forecourt cyntefin [kənˈtɛvɪn] = beginning of summer, first month of summer, May, spring, summer cythlwng = fasting, hunger
Old Cornish	kyniaf = harvest(-time), autumn
Middle Cornish (Cernewec)	cyn, cen, ken = first, before (that) cens, kens = before, formerly, rather cenzhoha, kenzhoha = the morning cynsa, censa, kensa = the first, chief cyniaf, kyniaw, cidniadh, cidniaz = autumn, harvest, time (“before winter”)
Cornish (Kernewek)	kyns, kens = former, previous, sooner, earlier, formerly, rather, before kyns ena, kens ena = previously, before then kynsa, kensa = first, initial kynser(es) = apprentice kynserneth = apprenticeship kynsistorek = prehistoric
Middle Breton (Brezonec)	quent = before quentaff = first
Breton (Brezhoneg)	kent [ˈkɛ̃nt] = before, previously, rather, preferably, prevous, prior kantad = ancestor kantael = primitive, primary kantaenn = principle kantañ [ˈkẽn.tã] = first, main, next, soon kentannezer = pioneer, pathfinder kentanv = first name kentocʼh [ˈkẽntɔx] = rather, instead kerkent [ˈkɛrkɛnt] = immediately, as soon as

Etymology: from Proto-Indo-European *kéntus, from *ken- (to arise, begin) [Source]. Words from the same roots possibly include begin, recent in English, beginnen (to begin, commence, start) in German, cenau (cub, pup, whelp, rascal) in Welsh, cana (cub, whelp) in Irish, szczenię (puppy, cub) in Polish, and reciente (recent) in Spanish [Source].
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Each & Every

24th July 2025 By Simon

Words for each, every, all and related things in Celtic languages.

Each & Every

Words marked with a * are reconstructions.

Proto-Celtic	*kʷākʷos = everyone, everybody, each, every
Transalpine Gaulish	papos = each, every (?)
Old Irish (Goídelc)	cách, cach [kax] = each, every, all, everyone cach la céin = one at a time cechtar = both, each
Middle Irish (Gaoidhealg)	cach, cech [kax / kex] = each, every, all, cách, cach = the one, each, everyone, all, the rest cechtar = each (of), both (of), either (of)
Irish (Gaeilge)	gach [ɡax / ɡɑx] = every, each, everything gach rud = everything gach aon, gach uile = every gach aon duine = each, every, person, everybody gach bliain, gach uile bhliain = every year ceachtar [ˈcaxt̪ˠəɾˠ] = either, one or other of two
Scottish Gaelic (Gàidhlig)	gach [gax] = every, each, all, per gach a chèile = each other gach bliadhna = every year, annually gach dùrachd = best regards, yours sincerely gach pearsa = per capita gach ràith = every season, seasonally, every quarter, quarterly gach rud = everything gach uile [gax ulə] = every, each
Manx (Gaelg)	dagh [dax] = each, every, both, singular gagh = each, every dagh blein, gagh blein = annually, yearly dagh laa, gagh laa = daily, every day gagh-laa = ordinary dagh ooilley, dagh un = every dagh unnane = every one dagh ynnyd, dagh ooilley ard, dagh ooilley raad = everywhere dagh ooilley nhee = everything dagh ooilley phersoon = everybody dagh ooilley raad = everywhere cagh = all, everyone, everybody cagh elley = everyone else, rest cagh yt cheilley = reciprocal
Proto-Brythonic	pọb, pāpos = every, each (?)
Old Welsh (Kembraec)	paup = every, each
Middle Welsh (Kymraec)	pop, pob = every, each, all, all manner of, every type of pobed = entirety pobua, pop wa, pob va = everywhere, every place pob uann, popmann, pop mann = everywhere, every place, every part pob un, pob vn, pobun everyone, everybody, each one, every (single) one, all
Welsh (Cymraeg)	pob [poːb] = every, each, all, all manner of, every type of pob dim, popeth = everything pobfa, pob fa = everywhere, every place pob lle poblle = every place, everywhere poblleath, pobmanrwydd = ubiquity, omnipresence pobman, pob man = everywhere, every place, every part pobun, pob un everyone, everybody, each one, every (single) one, all
Middle Cornish (Cernewec)	pép, péb = every one pob, póp, pôb, pôp, pûb, pûp = every, all pop, pób = every, each pepynag, pepenag = whatsoever, whatever
Cornish (Kernewek)	peub, pob = all, everybody, everyone pub = each, every pub eur = always pub huni = everybody, everyone pub le = everywhere pub pres, pub prys, pub termyn = always, all the time pub tra, puptra = everything pub dedhyek, pubdedhyek = daily pubonan, pubonen = everybody
Old Breton (Brethonoc)	pop = each, every
Middle Breton (Brezonec)	pep = each, every pep vnan = each and every, everybody, everyone
Breton (Brezhoneg)	pep [pep] = each, every a bep eil = alternatively in turns bemdez [ˈbɛmde(s)] = every day bemnoz [ˈbɛmnos] = every night pep hini, pep unan = each and every, everybody, everyone (a) pep lec’h = everywhere pep tro = every time

Etymology: either from Proto-Indo-European *kʷo-h₃kʷ-os, from *kʷós (which, what) and *h₃kʷ-os (to see), or from PIE *kʷeh₂-kʷos [Source]. Words from the same roots possibly include how in English, hoe (how) in Dutch, hve (how, like as) in Icelandic, con (with, together) in Italian, com (with, against, together) in Portuguese, cu in Romanian, and cual (like, as, in the manner of) in Spanish [Source].
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Proto-Celtic	*olyos = all
Gaulish	ollos = everything, everyone (?)
Old Irish (Goídelc)	(h)uile, (h)ule [(h)ˈulʲe] = all, whole
Middle Irish (Gaoidhealg)	uile [ˈulʲə] = all, every, the whole, everyone
Irish (Gaeilge)	uile [ˈɪlʲə / ˈɛlʲə] = all, every, whole, wholly, entirely uilechoiteann = general, universal uilechumhachtach = omnipotent, almighty uilefheasach = omniscient uilefhóinteach = all-purpose uileghabhálach = comprehensive, compendious, exhaustive uileláithreach = omnipresent, ubiquitous uiliteach = omnivorous
Scottish Gaelic (Gàidhlig)	uile [ulə] = all, every, entire, total uil-fhiosrach = all-knowing, omniscient uile-amasach [ɯl aməsəx] = all-purpose uile-bhiast = monster uile-chinnteachd = surety, certainty uile-choitcheann [ulə xɔhdʲçən̪ˠ] = universal uileas [uləs] = all, every
Manx (Gaelg)	ooilley [ulʲə / ulʲu] = all, whole, entire, everyone, everybody ooilley cooidjagh all together ooilley kiart = all right, alright, OK ooilley dy lieragh = altogether ooilley mygeart = all around, everywhere, round about, rampant ooilley-niartal = almighty ooilley smaghtagh = totalitarian
Old Welsh (Kembraec)	hol = all, the whole, everything, everyone
Middle Welsh (Kymraec)	oll, holl = all, the whole, everything, everyone, holla()l hollaul, hollawl, hollaỽl = whole, complete, entire holl gyuoethaỽc, hollgyuoethauc, hollgyuoethawc = almighty, omnipotent, all-powerful
Welsh (Cymraeg)	holl, oll [hoːɬ] = all, the whole, everything, everyone, entire, complete, total, completely, entirely oll yn oll = all in all (h)ollfydol = cosmic, universal, global (h)ollgyfoethog = almighty, omnipotent, all-powerful (h)ollol = whole, complete, entire (h)olloldeb, hollolrwydd = universality, generality (h)ollwybodol = omniscient, all-knowing, know-alls (h)ollysydd = omnivore
Middle Cornish (Cernewec)	oll, ol = all, every olgallusec, olgalluster = almighty
Cornish (Kernewek)	oll = all, every, entirely, everything oll termyn = enduring, etermal, everlasting olldalghus = comprehensive, global ollgallos = omnipotence ollgallosek, ollgallojek = almighty ollgemmyn, ollgebmyn = general ollgompassus = holistic ollvys, ollves = universe ollvysel, ollvesel = global, universal
Old Breton (Brethonoc)	oll = everything, everyone
Middle Breton (Brezonec)	holl, hol, oll = everything, everyone
Breton (Brezhoneg)	holl [ɔl] = everything, everyone, completely, totally holl-razh = completely hollad = total hollat = global, total hollbad = perpetual, permanent hollegezh = generality hollegour [ɔˈleːɡur] = generalist hollek [ˈɔlːek] = general, uncountable hollved [ˈɔlvet] = universe

Etymology: from Proto-Indo-European *h₂olyos, from *h₂el- (beyond, other) [source]. Words from the same roots include altro (other, another, more, further) in Italian, autre (another) in French, otro (other, another) in Spanish, allur (all, everybody) in Icelandic, al (all, any) in Danish, and all and alter(native) in English [source]

Barrels, Tuns & Casks

16th July 2025 By Simon

Words for barrel and related things in Celtic languages.

Words marked with a * are reconstructions.

Middle Irish (Gaoidhealg)	bairille = barrel
Irish (Gaeilge)	bairille [ˈbˠaɾʲəlʲə] = barrel
Scottish Gaelic (Gàidhlig)	baraill [barɪl̪ʲ] = barrel, cask barailte [barɪldʲ] = barrel, cask
Manx (Gaelg)	barrel, barril = barrel
Middle Welsh (Kymraec)	baryl, baril, balir = barrel(ful), cask(ful), butt, belly barileit, barrileid = barrelful, caskful
Welsh (Cymraeg)	baril, barel = barrel(ful), cask(ful), butt, belly barilo, barelu = to barrel, cask, resemble a barrel, drink a barrelful barilaid, barelaid = barrelful, caskful barilaidd = barrel-like, barrel-shaped barilan, barilen = small barrel or cask, keg barilwr, barilydd = cooper, tippler
Middle Cornish (Cernewec)	balliar = a hogshead, tun, barrel
Cornish (Kernewek)	balyer = barrel
Middle Breton	barill, baril = barrel bariillat = contents of a barrel
Breton (Brezhoneg)	barilh [ˈbɑː.rilj / ˈbɑː.riʎ] = barrel barilhad = contents of a barrel

Etymology: from Middle English barrel(l) (barrel), Anglo-Norman baril (small barrel), or Old French bar(e)il (barrel), which is of uncertain origin [source].

Old Irish (Goídelc)	tunna = barrel, cask
Middle Irish (Gaoidhealg)	tunna, tonna = tun, cask, barrel tunnaid = to store in casks
Irish (Gaeilge)	tonna = tun
Scottish Gaelic (Gàidhlig)	tunn [tũːn̪ˠ] = tun, barrel, put into a barrel, decant tonnadair [tɔn̪ˠədɪrʲ] = tunner, barrel funnel tunnadh [tun̪ˠəɣ] = (act of) tunning, barrelling, putting into a barrel, decanting
Manx (Gaelg)	tun = tun tunning = tun, tunning thunney = ton, tun
Middle Welsh (Kymraec)	twn = tun tunnell, tynnell, tunel = tun, large cask, large barrel, vat tunellho, tunella = to tun, barrel, cask
Welsh (Cymraeg)	twn = tun tunnell = tun, large cask, large barrel, vat, ton(ne) tunnellu, tunellio = to tun, barrel, cask tunnelliad = a tunning, barrelling, casking
Middle Cornish (Cernewec)	tonnel = a cask
Middle Breton (Brezonec)	tonell = tun, barrel
Breton (Brezhoneg)	tonell = tun, barrel, belly tonellad = contents of a tun or barrel toneller = cooper tonellerezh = cooperage

Etymology: from Latin tunna (tun, box), probably from Gaulish *tondā, from Proto-Celtic *tondā (surface, skin) [source].

A tun in English is a large cask, an oblong vessel bulging in the middle, like a pipe or puncheon, and girt with hoops; a wine cask or fermenting vat. Related words include tonne (1000kg) in English, ton (tun, barrel, cask) in Dutch, Tonne (tun, barrel, drum) in German, and tonneau (ton, barrel) in French [source].

Middle Irish (Gaoidhealg)	casc = cask
Irish (Gaeilge)	casca = cask
Scottish Gaelic (Gàidhlig)	casg [kasg] = cask
Middle Welsh (Kymraec)	casc = cask
Welsh (Cymraeg)	casg(en) [kasɡ] = cask casgennu = to cask casgennaid = caskful, contents of a cask

Etymology: from English cask (tun, box), from Middle French casque (helmet, hard hat), from Spanish casco (surface, skin), from cascar (to split), from Latin quassō (to shake, quake, wave), from quatiō (I share or agitate), from Proto-Italic *kʷatjō (to shake) [source].

Captive Hostages

28th May 202513th September 2025 By Simon

Words for hostage, pledge and related things in Celtic languages.

Words marked with an * are reconstructions.

Proto-Celtic	*geistlos = hostage, bail
Gaulish	geistlus = hostage (?)
Old Irish (Goídelc)	gíall = a human pledge, hostage
Middle Irish (Gaoidhealg)	gíall, gial, giall = a human pledge, hostage, jailer, act of yielding homage, obeying gíallacht, gíallnus = hostageship, captivity
Irish (Gaeilge)	giall [ɟiəl̪ˠ] = hostage, (human) pledge giallach = having or taking hostages giallacht = hostageship, bondage
Scottish Gaelic (Gàidhlig)	giall [gʲiəl̪ˠ] = hostage, pledge giallach [gʲiəl̪ˠəx] = pertaining to or abounding in hostages / pledges
Manx (Gaelg)	gioal = pledge, pawn, stake, wager, bet, bond geulys, geuleydys = bondage
Proto-Brythonic	*guɨstl = hostage, bail
Middle Welsh (Kymraec)	gustil, gustel, guyst(e)l, gvystl, gwystyl = pledge, security, surety, guarantee, earnest guystlvy, gustelau, gusthaf = to give pledge or assurance, guarntee, pledge, pawn gwystlyryaeth, gwystloryaeth = suretyship, pledge, stake, pawn, mortgage
Welsh (Cymraeg)	gwystl [ɡwɨ̞sdl / ɡʊi̯sdl] = pledge, assurance, security, surety, guarantee, earnest, gage, pawn, hostage, wager, stake, bet, mortgage gwystl(i)ad = a pledging, a pawning gwystlo = to give pledge or assurance, guarntee, pledge, pawn gwystlchwarae = gambling gwystledig = pledge, bound, mortgaged gwystlor(i)aeth = suretyship, pledge, stake, pawn, mortgage gwystlwr, gwystlydd = mortgagor, pawnbroker
Old Cornish	guistel = hostage
Middle Cornish (Cernewec)	guistel = hostage, pledge, surety
Cornish (Kernewek)	gostel = hostage, riot gostla = to pawn, wage
Old Breton (Brethonoc)	guistl = hostage
Middle Breton (Brezonec)	goestl = hostage, pledge goestlaff = to consecrate, dedicate, pledge, devote goestlet = pledged, dedicated, consecrated
Breton (Brezhoneg)	gouestl [ˈɡwestl] = hostage, pledge, guarantee, bail, surety gouestladur = commitment, offering gouestlaj = mortgage gouestlañ [ˈɡwestlã] = to bet, wager, guarantee, pledge, consecrate, dedicate, devote gouestlaoua = to bribe, buy, corrupt, grease the palm of gouestlaouañ = to bribe, corrupt gouestlet = pledged, dedicated, consecrated

Etymology: from Proto-Indo-European *gʰeydʰ- (to yearn for, to desire) [source]. Words from the same Proto-Celtic root, via Proto-Germanic *gīslaz (hostage), include gijzelen (to take hostage) in Dutch, Geisel (hostage) in German, gidsel (hostage) in Danish, gisslan (hostage) in Swedish, and kihlata (to betroth) in Finnish [source].

Words from the same PIE root include geisti (to desire, crave, covet, lust after) in Lithuanian, gaidīt (to wait, expect, anticipate) in Latvian, ждать (ždatʹ – to wait for, expect) in Russian, and geizen (to be miserly) in German [source].

Old Irish (Goídelc)	brága [ˈbraː.ɣɘ] = hostage, captive, prisoner
Middle Irish (Gaoidhealg)	brága, brágha, brage [ˈbraːɣə] = captive, prisoner, hostage brágigdenas, braighdenus, braighdeanas = hostageship, captivity bráigtechas, braightechus = hostageship
Irish (Gaeilge)	brá [bˠɾˠɑː] = captive, hostage braighdeanach = captive, prisoner braighdeanas = captivity, bondage
Scottish Gaelic (Gàidhlig)	bràigh [braːj] = captive, hostage bràighdeanas = bondage, captivity, slavery neach am bràighdeanas = captive, hostage

Etymology: from Proto-Celtic *brāgants (neck, throat), from *brāg + *-ants (body part suffix), from Proto-Indo-European *gʷerh₃- (to swallow, devour, eat) [source]. The sense “captive” derives from the Middle Irish phrase gaibid ar brágait (to take captive: lit. “to take by the neck”) [source].

Words from the same PIE root include carnivore, devour, gargle, gorge, gurgle and voracious in English; gurgeln (to gargle, gurgle) in German; voractià (oracity, voraciousness) in Italian, and gerti (to drink, soak up, absorb) in Lithuanian [source].

The word for hostage in Manx is raane, which also means assurance, bail, bond, collateral, guarantee, pledge or surety [source]. Its etymology is not known [source].

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].

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].

Celtiadur

Exploring connections between Celtic languages

Category: Gaulish

Whey

Swearing Oaths

First Things First

Each & Every

Barrels, Tuns & Casks

Captive Hostages

Malt

Breaking the Wind

Nights

Cressy