Efen-éce
Bosworth & Toller Anglo-Saxon Old English Dictionary - efen-éce
According to the Old English Dictionary:
emn-éce;
- efen-éce
- adj. Co-eternal; co-æternus :-- Æ/r ðon up-stíge efenéce bearn ágnum fæder ere that the co-eternal child ascended to his own father, Exon. 14 b; Th. 29, 19; Cri. 465. efen-ece