Ge-dwǽscan

According to the Old English Dictionary:

ge-dwǽscan

p. te. (i) to extinguish what is burning :-- Þone wlacan smocan wáces flǽsces wætere gedwǽscan lini tepidos undis exstinguere fumos, Dóm. L. 52. (2) to efface, do away with :-- Swylas gedwǽscean to do away with swellings. Lch. i. 372, 2. ge-dwæscan