Where does “undergloom” come from?

undergloom (English) comes from English gloom, from Middle English gloom, from Old English glōm, from Proto-West Germanic glōm, from Proto-Germanic glōmaz, from Proto-Indo-European ǵʰley-, from Proto-Indo-European ǵʰel- — to shine, glimmer, glow; to shimmer, gleam;...

undergloom (English): the underworld

Definitions

  1. the underworld

Ancestry of “undergloom”, step by step

undergloom traces back through two separate lines of ancestry.

via English gloom

StepLanguageWordMeaning
1EnglishgloomDarkness, dimness, or obscurity; A depressing,...
2Middle Englishgloom
3Old Englishglōmgloaming, twilight; darkness; gloom, gloaming;...
4Proto-West Germanicglōm
5Proto-Germanicglōmazgleam, shimmer, sheen
6Proto-Indo-Europeanǵʰley-to shine
7Proto-Indo-Europeanǵʰel-to shine, glimmer, glow; to shimmer, gleam;...

via English under

StepLanguageWordMeaning
1EnglishunderIn or at a lower level than; As a subject of;...
2Middle Englishunderunder
3Old Englishunderunder, beneath
4Proto-Germanicunderamong, between; under, beneath; under
5Proto-Indo-Europeanh₁entérbetween
6Proto-Indo-Europeanh₁enin; in, inside
Every word from Proto-Indo-European ǵʰel-Every word from Proto-Indo-European ǵʰley-Every word from Proto-Germanic glōmaz