Where does “subterraneously” come from?

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

subterraneously (English): In a subterraneous manner; underground

Definitions

  1. In a subterraneous manner; underground

Ancestry of “subterraneously”, step by step

subterraneously traces back through two separate lines of ancestry.

via English subterraneous

StepLanguageWordMeaning
1EnglishsubterraneousSubterranean
2Latinsubterraneusunderground, subterranean
3Latinsub-under, sub
4Proto-Indo-Europeanupóunder, below
5Proto-Indo-Europeanh₃ewp-—

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li
Every word from Proto-Indo-European h₃ewp- →Every word from Proto-Indo-European upó →Every word from Latin sub- →