Where does “souterrain” come from?

souterrain (English) comes from French souterrain, from French sous, from Middle French soubs, from Old French soz, from Latin subtus, from Latin sub, from Proto-Italic supo, from Proto-Indo-European upó.

souterrain (English): An underground chamber or passage sometimes used...

Definitions

  1. An underground chamber or passage sometimes used...

Ancestry of “souterrain”, step by step

StepLanguageWordMeaning
1Frenchsouterrainunderground; underground passage, tunnel
2Frenchsousbelow, under; plural of sou; money
3Middle Frenchsoubsunder; underneath
4Old Frenchsozunder
5Latinsubtusbelow, underneath, beneath
6Latinsubunder, beneath; behind; at the feet of
7Proto-Italicsupounder
8Proto-Indo-Europeanupóunder, below
9Proto-Indo-Europeanh₃ewp-
Every word from Proto-Indo-European h₃ewp-