Where does “underpant” come from?

underpant (Swedish) comes from Swedish under, from Old Swedish under, from Old Norse undr, from Proto-Germanic wundrą, from Proto-Indo-European wenh₁- — to love.

underpant (Swedish): pledge (solemn promise)

Definitions

  1. pledge (solemn promise)

Ancestry of “underpant”, step by step

underpant traces back through two separate lines of ancestry.

via Swedish under

StepLanguageWordMeaning
1Swedishunderunder; below; beneath; during, at the same time...
2Old Swedishunderwonder, miracle; wonderment, awe, marvel
3Old Norseundrwonder; scandal
4Proto-Germanicwundrąwonder, miracle
5Proto-Indo-Europeanwenh₁-to love

via Swedish pant

StepLanguageWordMeaning
1Swedishpantpledge, item deposited at a pawnshop or otherwise...
2Old Norsepantr—
Every word from Proto-Indo-European wenh₁- →Every word from Proto-Germanic wundrą →Every word from Old Norse undr →