Where does “人虱” come from?

人虱 (Japanese) comes from Japanese 人, from Proto-Japonic *pitə — one.

人虱 (Japanese): head louse (Pediculus humanus capitis)

Definitions

  1. head louse (Pediculus humanus capitis)

Ancestry of “人虱”, step by step

人虱 traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japanesea person, human; an individual; mankind, people
2Proto-Japonic*pitəone

via Japanese

StepLanguageWordMeaning
1Japanesea sucking louse, especially the head louse
Every word from Proto-Japonic *pitəEvery word from Japanese
人虱 — Etymology, Origin & Word History | Etymology Explorer