For-syngian

According to the Old English Dictionary:

for-syngian

Substitute: To make sinful; reflex, to sin :-- Gif hé hine sylfne wið God forsyngað, Wlfst, 280, 8. ¶ forsyngod burdened with sin, sinful :-- Swá se man sý swýðor forsingod, swá he geornor Godes hús séce, Wlfst. 155, 8. Wearð þes þeódscype swýðe forsyngod þurh mænigfealde synna, 163, 19. Forsyngodes mannes nýdhelp, Ll. Th. ii. 278, 2. On forsyngodre þeóde, Wlfst. 45, 13: 166, 8. Ðurh mistlice forligern forsyngode swýðe, 165, 32. for-syngian