Where does “sosterin” come from?

sosterin (Old French) comes from Latin subterraneus, from Latin sub-, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

sosterin (Old French): underground

Definitions

  1. underground

Ancestry of “sosterin”, step by step

StepLanguageWordMeaning
1Latinsubterraneusunderground, subterranean
2Latinsub-under, sub
3Proto-Indo-Europeanupóunder, below
4Proto-Indo-Europeanh₃ewp-—
Every word from Proto-Indo-European h₃ewp- →Every word from Proto-Indo-European upó →Every word from Latin sub- →