Breton menez

← Proto-Brythonic *mönɨð (derived)

← Proto-Celtic *moniyos (inherited)

← Welsh mynydd (cognate)

← Proto-Indo-European *men- (derived)

← Cornish menydh (cognate)

← Latin mōns (cognate)

← Old Breton monid (inherited)

→ Welsh mynydd (cognate)

→ Scottish Gaelic monadh (cognate)

→ Latin mons (cognate)

→ Old Irish Mana (cognate)

→ Middle Welsh mynyd (cognate)