Where does “大便” come from?

大便 (Japanese) comes from Japanese 大, from Old Japanese 大, from Proto-Japonic əpə — big, large; many.

大便 (Japanese): shit, excrement, faeces

Definitions

  1. shit, excrement, faeces

Ancestry of “大便”, step by step

大便 traces back through two separate lines of ancestry.

via Japanese 大

StepLanguageWordMeaning
1Japanese大big, large; the large part of; arch-
2Old Japanese大big, large; large
3Proto-Japonicəpəbig, large; many

via Japanese 便

StepLanguageWordMeaning
1Japanese便a convenience; facilities; bowel movement
Every word from Proto-Japonic əpə →Every word from Old Japanese 大 →Every word from Japanese 大 →