From-swícan

According to the Old English Dictionary:

from-swícan

p. -swác, pl. -swicon; pp. -swicen To withdraw, desert; desciscĕre, desĕrĕre :-- Ðeáh ðe he him fromswice though he had withdrawn from them, Cd. 46; Th. 58, 31; Gen. 954. Ða leóde him fromswicon the nations deserted him, Cd. 93; Th. 119, 18; Gen. 1981. from-swican