Gwroli, v. to become manly
Gwron, n. a worthy, a hero
Gwrryw, n. a male kind
Gwrtaeth, n. what improves, manure
Gwrteithiad, n. a manuring
Gwrteithio, v. to manure
Gwrteithiol, a meliorating
Gwrth, n. opposition, contrast; prep. against, opposite to
Gwrthachos, n. contrary cause
Gwrthachwyn, n. counter complaint