Ge-fyrenian
Bosworth & Toller Anglo-Saxon Old English Dictionary - ge-fyrenian
According to the Old English Dictionary:
-fyrnian;
- ge-fyrenian
- p. ode, ede; pp. od, ed To sin; peccāre :-- Ic gefyrenode I have sinned, Blickl. Homl. 235, 32, 34. We gefyrnedan mid úrum fæderum peccāvĭmus cum patrĭbus nostris, Ps. Th. 105, 6.