Gyrn-wracu

According to the Old English Dictionary:

gyrn-wracu

f. Vengeance for trouble or injury :-- Gearo gyrnwræce ready to revenge her grief, Beo. Th. 4242; B. 2118: 2281; B. 1138. Márum sárum gyldan gyrnwræce with greater pains to revenge their trouble, Exon. 39 a; Th. 128, 16; Gú. 405. gyrn-wracu