Where does “八重歯” come from?

八重歯 (Japanese) comes from Japanese 八, from Middle Chinese 八.

八重歯 (Japanese): double tooth, protruding tooth (like a fang); high canine, snaggletooth

Definitions

  1. double tooth, protruding tooth (like a fang); high canine, snaggletooth

Ancestry of “八重歯”, step by step

八重歯 traces back through 3 separate lines of ancestry.

via Japanese 八

StepLanguageWordMeaning
1Japanese八eight, 8; eight; Short for 八の字
2Middle Chinese八—

via Japanese 歯

StepLanguageWordMeaning
1Japanese歯tooth; age
2Middle Chinese齒—

via Japanese 重

StepLanguageWordMeaning
1Japanese重a division; something that divides two objects;...
2Middle Chinese重—
Every word from Middle Chinese 八 →Every word from Japanese 八 →