Ge-fagnian
Bosworth & Toller Anglo-Saxon Old English Dictionary - ge-fagnian
According to the Old English Dictionary:
-fagenian;
- ge-fagnian
- p. ode; pp. od To rejoice, be glad, exult; gaudēre, exultāre :-- Manega on his acennednysse gefagniaþ multi in natĭvĭtāte ejus gaudēbunt, Lk. Bos. 1, 14. Gefagnode ðæt cild on hyre innoþe exultāvit infans in utĕro ejus, 1, 41. Ic blissie and ic gefagenie on ðé lætābor et exultābo in te, Ps. Spl. T. 9, 2.