Flyge-reów

According to the Old English Dictionary:

flyge-reów

adj. [reów wild, fierce, cruel] Wild-flying, wild inflight; vŏlātu férus :-- Flygereówe þurh nihta genipu neósan cwómon, hwæðere . . . the wild-flying [evil spirits] came in the darkness of night to find out, whether . . . , Exon. 37b; Th. 123, 10; Gú. 320. flyge-reow