Ge-swelg

According to the Old English Dictionary:

es;

ge-swelg

n. A gulf, whirlpool, an abyss :-- Betwyx sandhriccan (and) geswelge swyliendes inter Scyllam et barathrum uoraginis, An. Ox. 635. Grutte, on geswelge in woraginem, 701. Geswelgum carybdibus, i. uoraginibus, 4620. ge-swelg