Good

Words for good in Celtic languages.

Proto-Celtic *matis = good
Old Irish (Goídelc) maith [maθʲ] = good
Irish (Gaeilge) maith [mˠa(h) / mˠaɪ(h)] = good; goodness, kindness; good things; fertility
Scottish Gaelic (Gàidhlig) math [ma] = good, well
Manx (Gaelg) mie [maɪ] = good, nice, moral, fair, pious, ready, goodness, favourable, virtuous, virtue, goodly
Proto-Brythonic *mad = good
Middle Welsh (Kymraec) mad [maːd] = good
Welsh (Cymraeg) mad [maːd] = good, lucky, fortunate, suitable, auspicious, beneficial, virtuous, holy, fair, pleasant, beautiful
Cornish (Kernewek) mas [ma:z / mæ:z] = good, respectable, moral
Middle Breton mat = good
Breton (Brezhoneg) mat / mad [maːd] = good, good product, moral, well (done), sweet

Etymology
From Proto-Indo-European *meh₂tis (ripe, good), from *meh₂- (to ripen, to mature) [source].

Note: mad is not commonly used in modern Welsh. The usual word for good is da.

Words marked with a * are reconstructions.

Sources: Wiktionary, Am Faclair Beag, Online Manx Dictionary, Teanglann.ie, Geiriadur Prifysgol Cymru, Gerlyver Kernewek, Dictionnaire Favereau

Left & North

Words for left, north and related words in Celtic languages.

Northern Ireland

Proto-Celtic *kliyos = left (hand)
*uɸokliyom = north
Old Irish (Goídelc) clé = left
fochlae = the north, seat of honor
Middle Irish (Gaoidhealg) clé = left
fochla = the north, seat of honour
Irish (Gaeilge) clé [clʲeː / clʲiː] = left, left hand, left-hand side
clébhord = port, larbord
Scottish Gaelic (Gàidhlig) clì [kliə] = left
Manx (Gaelg) clee = left
Proto-Brythonic *kleð = left, northern
*gwogleð [ɡwoˈɡlɛːð] = north
Old Welsh cled = left hand, left side
gogled = north
Middle Welsh (Kymraec) cled, kled = left hand, left side
argled = left, unlucky, unfortunate
gogled = north
Welsh (Cymraeg) cledd [kleːð] = left, left hand/side
argledd = left, unlucky, unfortunate
gogledd = north, northern, northerly
Cornish (Kernewek) kledh [klɛ:ð / kle:ð] = left, left-handed, northern
kledhbarth = north
gogledh = north
a-gledh = on the left
a-gledh dhe = to the left of
a-gledhbarth = on the north side
Breton (Brezhoneg) kleiz = left, left-handed; short-tempered, irascible; north

Etymology: from the Proto-Indo-European *ḱléyteh₂ (leaning, sloped, inclined) from *ḱley- (to lean, incline) [source].

Proto-Celtic *(s)kīttos = left, left-handed, clumsy, awkward, wrong, sinister, sad
Middle Irish (Gaoidhealg) cittach = left-handed, awkward
Irish (Gaeilge) ciotach [ˈcɪt̪ˠəx / ˈcɪt̪ˠa(h)] = left-handed, awkward, clumsy, difficult, troublesome, inconvenient
ciotachán = left-handed person, awkward, clumsy person
ciotóg = left hand, left fist, lefthanded person
ciotógach = left-handed, left-fisted, awkward
Scottish Gaelic (Gàidhlig) ciotach [kʲihdəx] = left-handed, awkward, sinister
ciotachan = left-handed person
Manx (Gaelg) kiuttag = left hand
kyttagh = left-handed
kiuttaght = left-handedness
Middle Welsh (Kymraec) chwith, hwidd = left, left-handed
Welsh (Cymraeg) chwith [χwiːθ] = left; left-handed, awkward, bungling, uncouth, unfortunate, sinister, sad, strange, unaccustomed, unusual, wrong, amiss; the left (hand); the Left
chwithig = left, left-handed; strange, awkward, clumsy, bungling, wrong, inauspicious, unpleasant, suspicious
chwithlyd = sinister, chilly
gochwith, go chwith = contrary, opposite, inside out, clumsy, awkward, left-handed; evil, mishap, misfortune

Etymology: from the Proto-Indo-European *skh₂ey- (left) [source].

Proto-Celtic *towto = left, north
Old Irish (Goídelc) túaid, thúaid = north, in the north
túaidemain = in the north, northwards
fa thuaith, fo thuaidh = northwards, to the north
Irish (Gaeilge) thuaidh [huəɟ / huə / huəj] = (in the) north, northern
ó thuaidh = to the north, northwards
aduaidh = from the north
Scottish Gaelic (Gàidhlig) tuath [tuə] = north
tuathach [tuəhəx] = northerner, person from North Uist; northerly, northern, boreal
Manx (Gaelg) twoaie = north, northerly, northern, boreal, northward
twoaieagh = northerner, northsider, northern (Manx) person
goal twoaie = rainbow (“going north”)
Old Breton tut = good, favorable
tuthe = a kind of demon

Etymology: possibly from the Proto-Indo-European *tewto- or *tewH- (to look favorably, protect, observe). Cognate with the Latin tūtus (safe, prudent, secure, protected), which is the root of English words like tutor and intuition [source].

Sources: Wiktionary, Am Faclair Beag, Online Manx Dictionary, Teanglann.ie, eDIL – Electronic Dictionary of the Irish Language, In Dúil Bélrai English – Old Irish glossary, Geiriadur Prifysgol Cymru, Gerlyver Kernewek, Dictionaire Favereau, TermOfis, English – ProtoCeltic WordList (PDF), Etymological Dictionary Of Proto Celtic

Right & South

Words for right & south in Celtic languages.

Proto-Celtic *dexswos = right (side), south
Old Irish (Goídelc) dess = right (side), right-hand; south; right, just; convenient, agreeable
Irish (Gaeilge) deas [dʲasˠ / dʲæsˠ] = south, southerly, to the south; right, right-hand
Scottish Gaelic (Gàidhlig) deas [dʲes] = south; southern; right (side); ready, finished; accomplished, expert, skilful; active, alert, quick, snappy; to hand, handy; clever, sharp; deft, dexterous
Manx (Gaelg) jesh = rightwing, righthand, starboard;nice, smart, felicitous, elegant, ready, tidy, groomed, adept, neat, seemly, becoming, suitable, fancy, trim
jiass [d͡ʒas] = south, southern, southerly, southward
Welsh (Cymraeg) deau = right; south, southern
de [deː] = south; dexterous, skilful, clever; ready; useful, handy; suitable, appropriate, proper, right, just; favourable, auspicious
Cornish (Kernewek) dyhow [dɪ’hɔʊ / də’hɔʊ] = south
Breton (Brezhoneg) dehou = right, south

Etymology
From Proto-Indo-European *deḱswo-, from *deḱs- (right-hand side).

Words marked with a * are reconstructions.

Sources: Wiktionary, Am Faclair Beag, Online Manx Dictionary, Teanglann.ie, Geiriadur Prifysgol Cymru, Gerlyver Kernewek, Dictionnaire Favereau

Narrow

Words for narrow in Celtic languages.

Proto-Celtic *koilos = thin
Old Irish (Goídelc) cáel / cóel = thin, slender, narrow, fine, delicate
Irish (Gaeilge) caol [keːl̪ˠ / kiːlˠ] = thin, slender; fine; narrow; shrill; slender; palatalized; weak, dilute; slight; subtle
Scottish Gaelic (Gàidhlig) caol [kɯːl̪ˠ] = narrow, slender; slim, thin, lean, skinny; lanky
Manx (Gaelg) keyl [keːl] = thin, fine, attenuated, lanky, lean, slim, slight, willowy, gracile, tapered, slender, hairline, narrow, spare, small, drawn out, watery (soup), weak (solution)
Proto-Brythonic *kʉl = narrow
Welsh (Cymraeg) cul [kɨːl / ˈkiːl] = narrow; lean; illiberal; bigoted, narrow-minded
Cornish (Kernewek) kul [ky:l / ki:l] = narrow

The word for narrow in Breton in strizh, which comes from the Latin strictus (tightened, compressed) [Source].

Words marked with a * are reconstructions.

Sources: Wiktionary, Am Faclair Beag, Online Manx Dictionary, Teanglann.ie, Geiriadur Prifysgol Cymru, Gerlyver Kernewek

Low

Words for low in Celtic languages.

Proto-Celtic *ɸīsselos = low
Old Irish (Goídelc) ísel [ˈiːsʲel] = low
Irish (Gaeilge) íseal [ˈiːʃəlˠ] = low, low-lying
Scottish Gaelic (Gàidhlig) ìosal [iəsəl̪ˠ] = low, humble, mean lowly
ìseal [iːʃəl̪ˠ] = low, commoner
Manx (Gaelg) ishil = low
injil = low, low-necked, low-lying, low-level, low down, low-built, low-pitched, low-grade, common (vulgar), depressed, subdued, subaltern
Welsh (Cymraeg) isel [ˈɨ̞sɛl / ˈiːsɛl / ˈɪsɛl] = low, low down, low-lying, low-flying; lower than the average or usual level, running low, shallow (water, lake)
Cornish (Kernewek) isel [‘izɛl / ‘izɐl] = low, modest, vulgar
Old Breton isel = low
Breton (Brezhoneg) izel = low

Etymology: from Proto-Indo-European pedsú, from *pṓds (foot) [source].

Words marked with a * are reconstructions.

Sources: Wiktionary, Am Faclair Beag, Online Manx Dictionary, Teanglann.ie, Geiriadur Prifysgol Cymru, Gerlyver Kernewek, Dictionnaire Favereau

High, Elevated, Noble

Words for high and related things in Celtic languages.

Gleann Cholm Cille

Proto-Celtic *ardwos = high
Gaulish *arduenna = high
Old Irish (Goídelc) ard [ar͈d] = high, height
Middle Irish (Gaoidhealg) ard = high, elevated, lofty, noble, distinguished, great, proud, difficult, laborious, arduous, height
ardach = hilly
ardae, airde = height, high place, greatness, nobility, loudness
ardaid = rises (against), to rebel
ardán = pride, arrogance
ardrí = high king
Irish (Gaeilge) ard [ɑːɾˠd̪ˠ / æːɾˠd̪ˠ] = height, hillock, top, high part; high, tall; loud; ambitious; chief, excellent, noble, advanced
ardaigh = to raise, elevate, ascend, carry
ardán = small height, platform, stage, stand, terrace, uplift
ardrí = high king
ardscoil = high school
ardú = elevation, increase, exaltation, excitement
Scottish Gaelic (Gàidhlig) àrd [aːr̪ˠd] = high, lofty, tall; great; loud; chief, eminent, superior, supreme
àrd-cheann = superior, chief
àrd-chùirt = high court
àrd-chiallach = intellectual
àrd-ollamh = professor
àrd-sgoil = secondary school, high school
àrdchadh = raising, elevating, promoting, advancing, raise, elevation, promotion, advancement
àrdaichte = raised, upgraded
àrdan = arrogance, haughtiness, pride, elevation, eminence, height
Manx (Gaelg) ard = high, towering, tall, big, loud, height, high place, fell, incline, district, region, direction, compass point, pole
ardan = platform, stage, stand
ard-chione = head, principal, superior, supremo
ardys = exaltation, greatness, height
Proto-Brythonic *arð = high
Middle Welsh (Kymraec) ard, art = hill, highland, top; high, upland
Welsh (Cymraeg) ardd [arð] = hill, highland, top; high, upland
ardd-tir = high ground
Middle Cornish (Cernewec) ard, arth = height, high place
arthelath = lordship
Cornish (Kernewek) ardh = height, high place
Breton (Brezhoneg) arz = high, elevated

Etymology: from Proto-Indo-European *h₃r̥dʰwós, from *h₃erdʰ- (to increase, grow; upright, high) and *-wós (creates adjectives from verbs) [source].

The Ardennes, a region of forests and hills in mainly in Belgium, Luxembourg, and also in France and Germany, was known as Arduenna Silva in Latin. The first part of the Latin name probably comes from the Gaulish *arduenna, or from the Latin arduus (lofty, high, steep, tall), which comes from the same PIE root [source].

Other words from the same PIE roots include arbor, arduous, orthodox and orthography in English, arbre (tree) in French, árbol (tree, mast) in Spanish, and рост [rost] (growth, increase, rise, height, stature) in Russian [source].

Proto-Celtic *ouxselos = high, elevated
Gaulish *uxelos = high
Old Irish (Goídelc) úasal = high
Middle Irish (Gaoidhealg) úasal = high, lofty, noble, honourable, noble
Irish (Gaeilge) uasal [ˈuəsˠəlˠ] = noble, high-born; gentle, gentlemanly; precious, fine; (of place) sacred to the dead; hallowed; enchanted, inhabited by fairies
Scottish Gaelic (Gàidhlig) uasal [uəsəl̻ˠ] = noble, highminded, genteel
Manx (Gaelg) ooasle = aristocratic, lofty, illustrious, esteemed, gentlemanly, patrician, honourable, dignified, lordly, magnificent, classy, respected
Proto-Brythonic *ʉxel [ʉˈxɛːl] = high, elevated
Middle Welsh (Kymraec) vchel, uchel = high, tall
Welsh (Cymraeg) uchel [ˈɨ̞χɛl / ˈiːχɛl /ˈɪχɛl] = hill, tall; high(-ranking), exalted, important, solemn, sublime, splendid, excellent, noble, stately, respectable, commendable; proud, haughty, arrogant, presumptuous, snobbish
uchelaf, uchelu = to raise, heighten, exalt, increase
uchelaidd = exalted
ucheldeb = highness
uchelder = high place, height, tallness, altitude, climax
ucheldir = highland, upland, high place, the Highlands
ucheldra = highness, height, glory, majesty, authority
ucheledig = elevated, sublime, noble
Middle Cornish (Cernewec) uchel = high, lofty, towering
uchelder = height, highness, loftiness
uchelle = to make high, exalt, hallow, sanctify
Cornish (Kernewek) ughel [‘ʏhɛl / ‘ɪʍɐl] = high, grand, loud, tall
ugheldas = patriarch
ughelder = height, loudness, tallness, volume
ughella = higher, superlative
ughelor = noble
ughelvam = matriarch
Old Breton uchel, uhel = high
Middle Breton vhel, uhel, uc’hel = high
uhelaat = to raise, elevate
uheladur = raising, heightening
uhelañ = highest, summit
uheldad = patriarch
uhelded = height, greatness, loftiness
uhelegezh = ambition, pride
Breton (Brezhoneg) uhel = high, upstream, uphill
uhelaat = raising
uhelder = altitude
uhelded = height, greatness
uheldiad = dignitary
uhelvrud = prestige

Etymology: from Proto-Indo-European *h₃ewps- (height) [source].

Words from the same PIE root include subtle and supine (lying on its back) in English, sotto (down, underneath, below) in Italian, arduous, orthodox and orthography in English, arbre (tree) in French, árbol in Spanish, and рост [rost] (growth, increase, rise, height, stature) [source].

Words marked with a * are reconstructions.

Sources: Wiktionary, Am Faclair Beag, Online Manx Dictionary, Teanglann.ie, eDIL – Electronic Dictionary of the Irish Language, In Dúil Bélrai English – Old Irish glossary, Geiriadur Prifysgol Cymru, Gerlyver Kernewek, Gerlyvyr Cernewec, Dictionaire Favereau, TermOfis, Le dictionnaire diachronique du breton, Geriafurch, English – ProtoCeltic WordList (PDF), Etymological Dictionary Of Proto Celtic

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Broad & Wide

Words for broad & wide in Celtic languages.

Proto-Celtic *ɸlitanos = broad, wide
Gaulish litana = broad, wide
Old Irish (Goídelc) lethan [l͈ʲeθan] = broad, wide
Irish (Gaeilge) leathan [ˈl̠ʲahənˠ] = broad, wide, extensive
Scottish Gaelic (Gàidhlig) leathann [l̪ˠʲɛhən̪ˠ] = broad, wide, extensive
Manx (Gaelg) lhean = wide, sheet, sweeping, flat of nose, extensive, broad, full (of chin)
Proto-Brythonic *lɨdan [lɨˈdan] = broad, wide
Middle Welsh (Kymraec) llydan = broad, wide
Welsh (Cymraeg) llydan [ˈɬədan] = broad, wide, long or wide (stride); sturdy, stout
Cornish (Kernewek) ledan [‘lɛdan] = broad
Old Breton litan = broad, wide
Breton (Brezhoneg) ledan = wide, broad

Etymology
From Proto-Indo-European *pl̥th₂-enos, from *pleth₂- (flat). [source].

Words marked with a * are reconstructions.

Sources: Wiktionary, Am Faclair Beag, Online Manx Dictionary, Teanglann.ie, Geiriadur Prifysgol Cymru, Gerlyver Kernewek, Dictionnaire Favereau

Gods, Deities & Days

Words for gods, deities & days in Celtic languages.

Proto-Celtic *dēwos = god, deity, day
*dēwā = goddess
Gaulish deuognata, teuoxtonio-, dēuos, dēwos, dēvona = god
Celtiberian teiuoreikis, deobriga = god
Galician deva = goddess (in river names)
Old Irish (Goídelc) día [dʲiːa̯] = god
Irish (Gaeilge) dia [dʲiə] = god, deity (plural: déithe)
Scottish Gaelic (Gàidhlig) dia [dʲiə] = god (plural: diathan)
Manx (Gaelg) jee = god, deity, godhead (plural: jeeaghyn)
Proto-Brythonic *duɨw [ˈduɨ̯w] = god
Old Welsh duiu = god
Welsh (Cymraeg) duw [dɨu̯ / dɪu̯] = god, the Supreme Being, the Almighty, the Christian Trinity; O God! (plural: duwiau)
Old Cornish duy = god
Cornish (Kernewek) duw [dyˑʊ / diˑʊ] = god (plural: duwow)
Old Breton doi = god
Middle Breton doe = god
Breton (Brezhoneg) doue = god

Etymology
From Proto-Indo-European *deywós (god), from *dyew- (sky, heaven) [source]. The Latin name for the city of Chester, Deva, possibly comes from the same Celtic root [source].

Words marked with a * are reconstructions.

Sources: Wiktionary, Am Faclair Beag, Online Manx Dictionary, Teanglann.ie, Geiriadur Prifysgol Cymru, Gerlyver Kernewek, Dictionnaire Favereau

Small

Words for small and related words in Celtic languages.

Proto-Celtic *bikkos = small, little
Old Irish (Goídelc) bec(c) [ˈbʲeɡ] = small, little
Irish (Gaeilge) beag [bʲɔɡ / bʲɞɡ / bʲɛɡ] = little, small, small amount; few
beagadán = diminutive person, little one
beagaigh = to lesson, diminish
beagán = little, a few, a little, somewhat
beagchainteach = silent, taciturn
beagchéillí = senseless, foolish
Scottish Gaelic (Gàidhlig) beag [beg] = small, little, wee; minor; petty, puny, trifling; slight
beag(adh) = to diminish, lessen, reduce
Manx (Gaelg) beg = small, short, slight, few, poky, model, narrow, quiet, dwarf
beggan = somewhat, slightly, partly, faintly, a few, little, small piece
Proto-Brythonic *bɨx = small
Middle Welsh (Kymraec) bychan [ˈbəχan] = small, little
Welsh (Cymraeg) bach [baːχ] = small, little, short; not fully grown or developed, young; insignificant, unimportant, humble; small (business); lower-case (letter); dear, beloved; poor
bach (y) nyth = runt, spoilt youngest child
fy mach i = my dear
pen bach = big-head, conceited person
bychan [ˈbəχan] = little, small, minute, diminutive; inconspicuous, obscure, unimportant, petty; young inexperienced; little one, young child
bychanaf, bychanu = to abase, disparage, disregard, slight, minimize
bychander, bychandod = littleness, smallness, scarcity, contempt, pettiness
bychanig = very little/small, minute, diminutive, bit, piece
bychan bach very little
Cornish (Kernewek) byghan [‘bɪhan] = little, small
byghanhe = to reduce, make smaller
byghanna = smaller
bara byghan = roll
bys byghan = little finger
flogh byghan = baby
lavrek byghan = underpants, briefs
Breton (Brezhoneg) bihan = small, insufficient, modest, little
bihanaat = diminutive, pet name
bihanadur = miniature
bihanniver = minority

Etmology: possibly from the Proto-Indo-European *bʰég-ko-s, from *bʰeg- (to break) +‎ the suffix *-kos

Words marked with a * are reconstructions.

Sources: Wiktionary, Am Faclair Beag, Online Manx Dictionary, Teanglann.ie, eDIL – Electronic Dictionary of the Irish Language, Geiriadur Prifysgol Cymru, Gerlyver Kernewek, Dictionaire Favereau, TermOfis

Big, Large & Great

Words for big. large & great in Celtic languages.

Proto-Celtic *māros = big, great
Gaulish maros
Lepontic 𐌌𐌀𐌓𐌖𐌉 (marui)
Old Irish (Goídelc) mór, máar, már = big, great
Irish (Gaeilge) mór [mˠoːɾˠ / mˠɔːɾˠ] = big, great, large
Scottish Gaelic (Gàidhlig) mòr [moːr] = big, great, large, grand, strapping; ample, bulky; high, lofty, tall; spacious; large amount
Manx (Gaelg) mooar [muːr / muːɹ̝ / muːə̯ / muː] = big, great, grand, heavy, tall, chief, major, familiar, powerful, marked, commodious, intimate, capacious, extravagant, intense, extensive, grievous, bold (promintary), loose-fitting, difficult
Proto-Brythonic *mọr [mɔːr] = great, large
Old Welsh maur = great
Middle Welsh (Kymraec) mawr = large, big, great
Welsh (Cymraeg) mawr [mau̯r / mou̯r] = large, big; fully grown; capital (of letter); heavy (rain); long (hair); deep (water)
Old Cornish maur = big
Cornish (Kernewek) meur [mø:r / me:r ] = great, grand, large, substantial
Old Breton mor = big
Breton (Brezhoneg) meur [møʁ] = big, many

Etymology: from Proto-Indo-European *moh₁ros (great) [source]

Proto-Celtic *brassos = great, violent
Irish (Gaeilge) bras = great, strong, swift (literary)
Welsh (Cymraeg) bras [braːs] = thick, fat, plump, stout, bulky, fatted, large, strong; coarse (sand); heavy (rain)
Cornish (Kernewek) bras [bra:z] = big, bulky, large
Breton (Brezhoneg) bras [bʁaz] = big, huge, important

Etymology: from Proto-Indo-European *gʷrod-to- from *gʷred- [source]

Words marked with a * are reconstructions.

Sources: Wiktionary, Am Faclair Beag, Online Manx Dictionary, Teanglann.ie, Geiriadur Prifysgol Cymru, Gerlyver Kernewek, Dictionnaire Favereau