Where does “underbalanced” come from?

underbalanced (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.

underbalanced (English): Describing a method of drilling for petroleum in...

Definitions

  1. Describing a method of drilling for petroleum in...

Ancestry of “underbalanced”, 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 →Every word from Proto-Indo-European h₁entér →Every word from Proto-Germanic under →
underbalanced — Etymology, Origin & Word History | Etymology Explorer