Where does “ワイオミング” come from?

ワイオミング (Japanese) comes from English Wyoming, from Munsee xwé:wamənk.

Ancestry of “ワイオミング”, step by step

StepLanguageWordMeaning
1EnglishWyomingnow part of the town of Plympton-Wyoming
2Munseexwé:wamənk
Every word from Munsee xwé:wamənkEvery word from English Wyoming
ワイオミング — Etymology, Origin & Word History | Etymology Explorer