Where does “underthing” come from?

underthing (English) comes from English Thing, from Middle English thing, from Old English þing, from Proto-West Germanic þing, from Proto-Germanic þingą, from Proto-Indo-European tenkó-, from Proto-Indo-European tenk- — to be solid, firm; to be suitable; to succeed,...

underthing (English): An undergarment

Definitions

  1. An undergarment

Ancestry of “underthing”, step by step

underthing traces back through two separate lines of ancestry.

via English Thing

StepLanguageWordMeaning
1EnglishThingA public assembly or judicial council in a...
2Middle Englishthingthing
3Old Englishþingevent, meeting, court; matter, concern; thing,...
4Proto-West Germanicþingcourt session, lawsuit; affair, matter; thing,...
5Proto-Germanicþingąappointed time; date; appointment; meeting;...
6Proto-Indo-Europeantenkó-
7Proto-Indo-Europeantenk-to be solid, firm; to be suitable; to succeed,...

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 tenk-Every word from Proto-Indo-European tenkó-Every word from Proto-Germanic þingą
underthing — Etymology, Origin & Word History | Etymology Explorer