Breton mor

← Proto-Brythonic *mor (inherited)

← Proto-Celtic *mori (inherited)

← Proto-Indo-European *móri (inherited)

← Old Breton mor (inherited)

→ English mere (mention)

→ English Morbihan (mention)

→ Old English mere (cognate)

→ Breton morioù (suffix)

→ Breton morvil (affix)