Where does “underteacher” come from?

underteacher (English) comes 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.

underteacher (English): A lower-ranking teacher; an assistant teacher

Definitions

  1. A lower-ranking teacher; an assistant teacher

Ancestry of “underteacher”, step by step

underteacher traces back through two separate lines of ancestry.

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

via English teacher

StepLanguageWordMeaning
1EnglishteacherA person who teaches, especially one employed in...
2Middle Englishtechere—
Every word from Proto-Indo-European h₁en →Every word from Proto-Indo-European h₁entér →Every word from Proto-Germanic under →