Welsh gwlith

← Proto-Brythonic *gwliθ (inherited)

← Proto-Celtic *wlixtis (inherited)

← Proto-Celtic *wlikʷos (mention)

← Welsh gwlyb (mention)

← Proto-Indo-European *wleykʷ- (root)

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

→ Welsh gwlithlaw (compound)

→ Welsh gwlitho (affix)