Name Cynethryth Gender Feminine Usage Anglo-Saxon, History Other Forms FormsCyneþryð, Cyneðryð, Cynethrith, Ceneðryð, Cynedrith Edit Status Status Meaning & History Derived from Old English cyne "royal" and þryþ "strength".This name was borne by an 8th-century queen of the Anglo-Saxon kingdom of Mercia.