Where does “subterranean” come from?

Subterranean comes from Latin subterraneus, formed from Latin sub meaning under and Latin terra meaning earth, ultimately from Proto-Indo-European upo meaning under.

subterranean (English): below ground, under the earth, underground

Definitions

  1. below ground, under the earth, underground

Ancestry of “subterranean”, step by step

StepLanguageWordMeaning
1Latinsubterraneusunderground, subterranean
2Latinsub-under, sub
3Proto-Indo-Europeanupóunder, below
4Proto-Indo-Europeanh₃ewp-—

Words derived from “subterranean”

Every word from Proto-Indo-European h₃ewp- →Every word from Proto-Indo-European upó →Every word from Latin sub- →