Ferhþ-geníþla

According to the Old English Dictionary:

an;

ferhþ-geníþla

m. A life-enemy, deadly foe; vītæ hostis, lētālis hostis :-- Ic sweorde drep ferhþgeníþlan I struck the deadly foe with my sword, Beo. Th. 5754; B. 2881. ferhþ-geniþla