Welsh arwydd

← Proto-Celtic *ɸarewēdyom (inherited)

← Proto-Celtic *wēdo- (mention)

← Proto-Indo-European *weyd- (root)

← Proto-Indo-European *weyd- (inherited)

← Old Irish airde (cognate)

← Middle Welsh arwyð (inherited)

→ Welsh arwyddion (affix)

→ Welsh cyfarwydd (affix)