Old Irish nó

← Proto-Celtic *now- (inherited)

← Welsh neu (cognate)

← Ancient Greek ναῦς (cognate)

← Proto-Indo-European *néh₂us (inherited)

← Latin navis (cognate)

← Old Breton nou (cognate)

→ Irish no (inherited(ga/gd))

→ Irish nó (inherited)

→ Irish nae (inherited)

→ Scottish Gaelic na (inherited)