Ge-þuxian, -þuhsian

According to the Old English Dictionary:

ge-þuxian, -þuhsian

p. ode To grow dark, get obscured by clouds :-- Bið eac úpheofon sweart and gesworcen, swíþe geþuxsað (and swíþe geþuhsod, Wlfst. 137, 9), deorc and dimhíw tristius et coelum tenebris obducitur atris, Dóm. L. 105. ge-þuxian