Where does “underfloor” come from?

underfloor (English) comes from English under-, from English under, from Middle English under, from Old English under, from Proto-Germanic under, from Proto-Indo-European h₁entér, from Proto-Indo-European h₁en — in; in, inside.

underfloor (English): Located beneath the floor; A layer of flooring...

Definitions

  1. Located beneath the floor; A layer of flooring...

Ancestry of “underfloor”, step by step

StepLanguageWordMeaning
1Englishunder-Beneath, under
2EnglishunderIn or at a lower level than; As a subject of;...
3Middle Englishunderunder
4Old Englishunderunder, beneath
5Proto-Germanicunderamong, between; under, beneath; under
6Proto-Indo-Europeanh₁entérbetween
7Proto-Indo-Europeanh₁enin; in, inside
Every word from Proto-Indo-European h₁en