Where does “横波” come from?

横波 (Japanese) comes from Japanese 波, from Middle Chinese 波.

横波 (Japanese): transverse wave

Definitions

  1. transverse wave

Ancestry of “横波”, step by step

横波 traces back through two separate lines of ancestry.

via Japanese 波

StepLanguageWordMeaning
1Japanese波wave
2Middle Chinese波—

via Japanese 横

StepLanguageWordMeaning
1Japanese横side
2Middle Chinese橫—
Every word from Middle Chinese 波 →Every word from Japanese 波 →
横波 — Etymology, Origin & Word History | Etymology Explorer