Feóndulf?

According to the Old English Dictionary:

feóndulf?

Substitute: feónd-ulf (ulf > wulf; cf. ulf in proper names, e. g. Swíð-ulf, Beorht-ulf, Eád-ulf, Beorn-ulf, Ecg-ulf, Chr. 897; P. 90, 4-9, and see Kl. Nom. Stam. p. 17), es; m. A felon, villain:--Feóndulf furcifer, furca dignus, Germ. 396, 317. Cf. wearg. feondulf