Where does “subterraneanity” come from?

subterraneanity (English) comes from English subterranean, from Latin subterraneus, from Latin sub-, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

subterraneanity (English): The quality of being subterranean

Definitions

  1. The quality of being subterranean

Ancestry of “subterraneanity”, step by step

subterraneanity traces back through two separate lines of ancestry.

via English subterranean

StepLanguageWordMeaning
1Englishsubterraneanbelow ground, under the earth, underground
2Latinsubterraneusunderground, subterranean
3Latinsub-under, sub
4Proto-Indo-Europeanupóunder, below
5Proto-Indo-Europeanh₃ewp-

via English ity

StepLanguageWordMeaning
1Englishity
2Ingrian-uUsed to form nouns from verbs
Every word from Proto-Indo-European h₃ewp-Every word from Proto-Indo-European upóEvery word from Latin sub-
subterraneanity — Etymology, Origin & Word History | Etymology Explorer