English Usk

← Proto-Brythonic *Uɨsk (derived)

← Welsh Wysg (cognate)

← English Esk (mention)

← English Exe (mention)

← English Axe (mention)

← Middle Welsh Wÿsk (derived)

→ English Axe (mention)

→ English Exe (mention)

→ English Esk (mention)

→ English Uskmouth (affix)