Ge-swelgan

According to the Old English Dictionary:

ge-swelgan

p. -swealg, -swealh, pl. -swulgon; pp. -swolgen [swelgan to swallow] To swallow, devour; devŏrāre, deglutīre :-- Ða mægenþreátas meredeáþ geswealh the sea-death swallowed those mighty bands, Cd. 169; Th. 210, 9; Exod. 512. ge-swelgan