Wiktionary
begloom
vb. 1 (lb en transitive rare) To make gloomy; darken. 2 (lb en transitive archaic) To sadden.
Usage examples of "begloom".
Bright as they were, the Captive Suns would have been brighter still, if not for the dust shrouds that begloomed the Multisystem.
The begloomed black-grey sky of the Multisystem brooded in the background, set off here and there with the dull red glow of reflected Spherelight on a dust cloud.