Where does “undertunic” come from?

undertunic (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.

undertunic (English): A tunic worn under other clothing

Definitions

  1. A tunic worn under other clothing

Ancestry of “undertunic”, step by step

undertunic 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 tunic

StepLanguageWordMeaning
1EnglishtunicA garment worn over the torso, with or without...
2Middle Frenchtuniquemembrane; tunic
3Old Frenchtuniquetunic
4Latintunicatunic, an undergarment worn by both men and...
Every word from Proto-Indo-European h₁enEvery word from Proto-Indo-European h₁entérEvery word from Proto-Germanic under