Where does “semisubterranean” come from?

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

semisubterranean (English): Partially subterranean

Definitions

  1. Partially subterranean

Ancestry of “semisubterranean”, step by step

semisubterranean 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 semi

StepLanguageWordMeaning
1EnglishsemiA semi-detached house; A semitrailer; a...
2Englishsemi-half; partial, incomplete; somewhat, rather,...
3Latinsēmi-half
4Proto-Indo-Europeansēmihalf; partially
Every word from Proto-Indo-European h₃ewp- →Every word from Proto-Indo-European upó →Every word from Latin sub- →