Ge-sencan

According to the Old English Dictionary:

ge-sencan

p. -sencte; pp. -senct To sink, drown; submergĕre :-- Hí gesencte [synt] on ðære [MS. ðere] reádan sǽ [MS. sea] they are drowned in the Red sea, Cant. Moys. Ex. 15, 4; Thw. 15, 4. ge-sencan