Eald-gewinna
Bosworth & Toller Anglo-Saxon Old English Dictionary - eald-gewinna
According to the Old English Dictionary:
an;
- eald-gewinna
- m. An old foe; antīquus inĭmīcus :-- Grendel wearþ, eald-gewinna, ingenga mín Grendel, my old foe, became my invader, Beo. Th. 3556; B. 1776.