Save Gender Masculine Usage Welsh Pronounced Pron. [ˈtei.vjɔn] [key·simplify] Meaning & History Possibly an elaborated form of Teifi, the name of a river in Ceredigion, Wales, using the suffix on (found in names of Welsh rivers dedicated to gods, such as Aeron, as well as some early Welsh saints' names, such as Mabon).
indicate the level to which a name has been verified.