Words for rivers & stars in Celtic languages.
|Proto-Celtic||*abonā / *abū = river|
|Gaulish||ambe = river|
|Old Irish (Goídelc)||aub [au̯v] = river|
|Middle Irish (Gaoidhealg)||abann = river|
|Irish (Gaeilge)||abhainn [əunʲ / əun̠ʲ / oːn̠ʲ] = river|
|Scottish Gaelic (Gàidhlig)||abhainn [a.ɪn̪ʲ] = river, stream|
|Manx (Gaelg)||awin [aunʲ / ˈawənʲ] = river|
|Proto-Brythonic||*aβon [aˈβoːn] = river|
|Middle Welsh (Kymraec)||afon = river|
|Welsh (Cymraeg)||afon [ˈaːvɔn / ˈavɔn] = river, stream, brook|
|Cornish (Kernewek)||avon / awon [ˈavɔn] = river|
|Middle Breton||auon = river|
|Breton (Brezhoneg)||aven [ˈɑː.ven] = river|
Etymology: from the Proto-Indo-European *h₂ep-h₃ōn-, from *h₂ep- (water, body of water) [source].
|Proto-Celtic||*sterā = star|
|Middle Irish (Gaoidhealg)||ser = star|
|Proto-Brythonic||*ster = stars|
|Welsh (Cymraeg)||sêr [seːr] = stars|
|Cornish (Kernewek)||ster = stars|
|Breton (Brezhoneg)||ster [ˈsteːr] = stars, river|
Etymology: from the Proto-Indo-European *h₂stḗr (star), from **h₂eh₁s- (to burn) [source]. It’s possible that the Breton word for ster comes from two different roots, and the river one is not cognate with words for star in other Celtic languages.
Words marked with a * are reconstructions.