Words for blood and related things in Celtic languages.


Proto-Celtic *wolis, *weli- = blood
Old Irish (Goídelc) fuil [fulʲ] = blood, wound
Middle Irish (Gaoidhealg) fuil [fulʲ] = blood, wound
Irish (Gaeilge) fuil [fˠɪlʲ / fˠɨ̞lʲ] = blood
fuilaistriú = blood transfusion
fuilbheartach = sanguinary, bloody-minded
fuilchill = blood cell
fuilchíocrach = bloodthirsty
fuilchoirpín = blood corpuscle
fuildoirteadh = bloodshed
fuiligh, cuir fola = to bleed
cú fola = bloodhound
Scottish Gaelic (Gàidhlig) fuil [ful] = blood, family, tribe, kindred
fuileachdach = bloody, bloodthirsty
fuil-mìos = menstruation, period
brùthadh-fala = blood pressure
cion-fala = anæmia
iomlaid fala = blood transfusion
marag-fhala = black pudding
ruith-fala = haemorrhage, haemorrhoids, piles
Manx (Gaelg) fuill [fuɪlʲ] = blood, breeding, kindred
fuill-vreck = bloodstained
coo folley = bloodhound
lhiggey fuill, roie folley = to bleed
mooinjer folley = blood relation
ym-roie folley = hemophilia
Middle Welsh (Kymraec) gweli, gwely, gueli = wound, cut, gash
Welsh (Cymraeg) gweli [ˈɡwɛli] = (bleeding) wound, cut, gash, ulcer, sore
gweli angheuol mortal wound
gwelïaf, gwelïo = to wound, injure, hurt, exulcerate; to fester
gwelïog = fulls of wounds, sores, ulcers, wounded, bruised
Middle Cornish (Cernewec) goly = wound, mark, hurt
guli = wound
Cornish (Kernewek) goli = injury, wound
goli bew/byw = ulcer
golia = to wound
goliesiges = casualty
Middle Breton gouli, goulyow = wound, injury
Breton (Brezhoneg) gouli = wound, injury

Etymology: from the Proto-Indo-European *welh₃- (to wound, strike) [source]. Words from the same root include vulnerable, valkyrie and Valhalla [source].

Proto-Celtic *krū- = blood
*krowos = blood
*krowdi- = rude
Old Irish (Goídelc) crú = gore, blood
Irish (Gaeilge) cró [kɾˠoː / kɾˠɔː] = blood, gore
Scottish Gaelic (Gàidhlig) crò [krɔː] = blood, gore, blood oath
crò-dhearg = crimson
Proto-Brythonic *krow = blood
Middle Welsh (Kymraec) crev, creu = blood
Welsh (Cymraeg) crau [kraɨ̯ /krai̯] = blood, gore, carnage, bloody
creulon = bloody, cruel, fierce, brutal
Middle Cornish (Cernewec) crow = gore, blood, death
Cornish (Kernewek) krow = bloodshed, gore

Etymology: from the Proto-Indo-European *kréwh₂s (blood) [source]. English words from the same root include crude and raw [source].

Proto-Celtic *wayos = blood
Middle Welsh (Kymraec) guayt, guaed, gwaet = blood. gore, juice, sap
Welsh (Cymraeg) gwaed [ˈɡwaːɨ̯d /ˈɡwai̯d] = blood. gore, juice, sap
gwaedlyf haemorrhage
gwaedlyd = bloody, sanguinary
gwaedlyn = lymph
gwaedogen = black pudding
gwaedlyn = lymph
gwaedu = to bleed
Old Cornish guit = blood
Middle Cornish (Cernewec) gois, goys, goos, gos = blood
gosys = bloody
Cornish (Kernewek) goos [ˈɡuːz] = blood, bloodline
devera goos = to bleed, lose blood
gwaskedh goos = blood pressure
Breton (Brezhoneg) gwad [ˈɡwaːt] = blood, essence
gwadañ = to bleed
gwadegenn = black pudding, blood sausage
gwadgi = bloodhound
gwadorged = incest

Etymology: uncertain [source].

Words marked with a * are reconstructions.

Sources: Wiktionary, Am Faclair Beag, Online Manx Dictionary,, 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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