Fǽr-scyte

According to the Old English Dictionary:

es;

fǽr-scyte

m. A sudden or pernicious shot; imprōvīsus vel fātālis jactus :-- We fæste sculon wið ðam fǽrscyte wearde healdan we should firmly hold ward against that sudden shot, Exon. 19 a; Th. 48, 4; Cri. 766: 35 a; Th. 113, 13; Gú. 157. fær-scyte