Where does “otsu” come from?

otsu (English) comes from Turkish ot, from Ottoman Turkish اوت, from Proto-Turkic ōt — fire; bonfire.

otsu (English): In Old Japanese, one of two sets of vowels of...

Definitions

  1. In Old Japanese, one of two sets of vowels of...

Ancestry of “otsu”, step by step

otsu traces back through two separate lines of ancestry.

via Turkish ot

StepLanguageWordMeaning
1Turkishotgrass; herb
2Ottoman Turkishاوتyes; herb, grass, weed; poison, chemical remedy...
3Proto-Turkicōtfire; bonfire

via Japanese 乙

StepLanguageWordMeaning
1Japanese乙something B; a stupid person, someone who is slow...
2Middle Chinese乙—
Every word from Proto-Turkic ōt →Every word from Ottoman Turkish اوت →Every word from Turkish ot →