Words for young in Celtic languages.
|Proto-Celtic||*yowankos = young|
|Old Irish (Goídelc)||óc [oːɡ] = young|
|Irish (Gaeilge)||óg [oːɡ / ɔːɡ] = young; junior, minor; new, fresh, early|
|Scottish Gaelic (Gàidhlig)||òg [ɔːg] = young, youthful|
|Manx (Gaelg)||aeg [ɛːɡ] = young, adolescent, immature|
|Proto-Brythonic||*jowank = young|
|Middle Welsh (Kymraec)||ieuanc [ˈjeɨ̯aŋk] = young, juvenille, unmarried|
|Welsh (Cymraeg)||ifanc [ˈɪvaŋk / ˈiːvaŋk] = young, youthful, adolescent; inexperienced, immature; recent; unmarried, newly wed|
|Middle Cornish||yowynk, yonk = young|
|Cornish (Kernewek)||yowynk [‘jɔwɪŋk] = young, juvenille
yonk [jɔˑŋk] = young, juvenille
|Middle Breton||youanc = young|
|Breton (Brezhoneg)||yaouank = young|
Possibly from the Proto-Indo-European *h₂yuh₁n̥ḱós (young).
Words marked with a * are reconstructions.