Ge-irsian

According to the Old English Dictionary:

ge-irsian

Take here ge-eorsian, -yrsian in Dict., and add:--God, ðú ðe sóðlíce giiorses (irasceris), Rtl. 40, 23. Hwæt þá Datianus deófollíce geyrsode ongeán ðone hálgan wer, Hml. S. 14, 23. Lǽt þíne godas geyrsian, gif hí áht magon, 7, 113. ge-irsian