Where does “whereunder” come from?

whereunder (English) comes from English where, from Middle English wher, from Old English hwǣr, from Old English -a, from Proto-Germanic -ō, from Proto-Germanic -ô, from Proto-Indo-European -ō — Derives nouns from roots.

whereunder (English): Under which or what

Definitions

  1. Under which or what

Ancestry of “whereunder”, step by step

whereunder traces back through two separate lines of ancestry.

via English where

StepLanguageWordMeaning
1EnglishwhereWhile on the contrary; although; whereas; At or...
2Middle Englishwherwhere
3Old Englishhwǣrwhere
4Old English-aEnding forming adverbs; nominative masculine...
5Proto-Germanic-ōCreates feminine nouns from roots and stems
6Proto-Germanic-ô-ly; Forms agent nouns, often from the zero-grade...
7Proto-Indo-European-ōDerives nouns from roots

via English under

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