Words for frost and ice and related words in Celtic languages.
| Proto-Celtic | *ɸreswos = frost |
|---|---|
| Old Irish (Goídelc) | réúd [r͈ʲeːu̯ð] = frost |
| Middle Irish (Gaoidhealg) | reód = frost |
| Irish (Gaeilge) | reo [ɾˠoː / ɾˠɔː] = frost reodóg = icicle reoigh = to freeze, congeal, solidify reoiteach = frosty, chilling reoiteacht = frostiness reoiteog, uachtar reoite = ice cream reomhar = frigid |
| Scottish Gaelic (Gàidhlig) | reòth [r̪ˠɔː] = frost, freeze, become frozen, congeal reòite [r̪ˠɔːdʲə] = frozen, frosty, icy reòthtach [r̪ˠɔːhdəx] = freezing, frosty reòthadh = freeze reòthadair [r̪ˠɔ.ədɪrʲ] = deep-freeze, freezer stob reòta, caisean-reòta, boidean-reòthaidh = icicle |
| Manx (Gaelg) | rio = frost, freezing, ice riojey = to freeze, ice up rioeeagh = freezing, frosty rioeeaght = frostiness rioghar, bwoid rioee, kibbin rioee = icicle riojag, key riojey, key riojit = ice-cream rio-stroo, awin rioee = glacier |
| Middle Welsh (Kymraec) | rew, reo, rev = frost |
| Welsh (Cymraeg) | rhew [r̥eːu̯ / r̥ɛu̯] = (hoar-) frost, ice rhewaidd = freezing, frosty, icy rhewedig = frozen, icy, extremely cold rhewi = to freeze, preserve; anaesthetize, make numb rhewiadur = refrigerator rhewin = frosty weather rhew bargod = icicle rhew du = black ice gwŷn rhew = frost-bite rhedlif rhew = glacier |
| Old Cornish | reu = ice, frost |
| Cornish (Kernewek) | rew = ice, frost rewer = freezer rewi = to freeze rewys = frozen downrewi = deep-freeze, freezer dehen rew = ice cream furvell rew = ice tray kub rew = ice cube skes rew = ice skate |
| Breton (Brezhoneg) | rev = frost, freezing, freeze rev du = black ice rev noz = night frost |
Etymology: from the Proto-Indo-European *prews- (to freeze, frost), which is also the root of the word frost in English [source].
| Proto-Celtic | *yegis = ice |
|---|---|
| Old Irish (Goídelc) | aig [ˈaɣʲ] = ice |
| Irish (Gaeilge) | oighear [əiɾʲ] = ice oighear dubh = black ice oighreach = glacial leac oighir = (sheet of) ice |
| Scottish Gaelic (Gàidhlig) | eigh [ej] = ice eigh-bheinn = iceberg eigh-shruth = glacier leac-eighe = ice-floe linn-eighe = ice age pac-eigh = pack ice taigh-eighe = ice house |
| Proto-Brythonic | *jaɣ = ice |
| Welsh (Cymraeg) | iâ [jaː] = ice, (hoar-) frost hufen iâ = ice cream glaw iâ = frozen rain Gwlad yr Iâ = Iceland llen iâ = ice sheet mynydd (o) iâ = iceberg, ice-mountain, ice-hill |
| Old Cornish | iein = ice |
| Cornish (Kernewek) | yey = ice |
| Middle Breton | yen = ice |
Etymology from the Proto-Indo-European *h₁yeg- (ice, frost), which is also the root of the English word icicle [source].
Another word for ice in Breton is skorn – etymology unknown.
Words marked with a * are reconstructions.
Sources: Wiktionary, Am Faclair Beag, Online Manx Dictionary, Teanglann.ie, Geiriadur Prifysgol Cymru, Gerlyver Kernewek, Dictionaire Favereau












