Where does “underbark” come from?

underbark (English) comes from English bark, from Middle English bark, from Old English barc, from Old Norse bǫrkr, from Proto-Germanic barkuz, from Proto-Indo-European bʰerHǵós — birch.

underbark (English): The inner layer of tree bark, beneath the...

Definitions

  1. The inner layer of tree bark, beneath the...

Ancestry of “underbark”, step by step

underbark traces back through two separate lines of ancestry.

via English bark

StepLanguageWordMeaning
1EnglishbarkTo make a short, loud, explosive noise with the...
2Middle Englishbarkbark; The exterior layer of a nut or other fruit;...
3Old Englishbarcbark
4Old Norsebǫrkrbark
5Proto-Germanicbarkuzbark of a tree
6Proto-Indo-EuropeanbʰerHǵósbirch

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 bʰerHǵós