Elfrida

Elfrida is an anglicized form of the Old English name Ælfþryð, composed of the elements ælf, meaning elf, and þryð, meaning strength. The name was borne by Elfrida, a tenth-century English queen consort and wife of King Edgar, who became a notable if controversial figure in medieval accounts. The name largely fell out of use after the Norman Conquest but was occasionally revived during periods of antiquarian interest in Anglo-Saxon heritage. Related forms include Etheldreda, Elfreda, and Alfreda.