Old Irish búachaill

← Proto-Celtic *boukolyos (inherited)

← Ancient Greek βουκόλος (cognate)

← Proto-Indo-European *kʷel- (root)

← Proto-Indo-European *gʷowkólos (inherited)

← Proto-Indo-European *gʷṓws (mention)

← Proto-Indo-European *kʷel- (mention)

→ Irish buachaill (inherited)

→ Scottish Gaelic buachaill (inherited)

→ Manx bochilley (inherited)

→ Manx bochil (mention)