Old Irish finn

← Gaulish *windos (cognate)

← Proto-Celtic *windos (inherited)

← Welsh gwyn (cognate)

→ Irish fionn (inherited)

→ Irish Fionn (mention)

→ Irish Fionnghuala (mention)

→ Irish ceannann (mention)

→ Scottish Gaelic fionn (inherited)

→ Manx fynn (inherited)

→ Old Irish Finnacán (suffix)

→ Old Irish Finnabair (affix)