Where does “波長” come from?

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

波長 (Japanese): wavelength

Definitions

  1. wavelength

Ancestry of “波長”, step by step

波長 traces back through two separate lines of ancestry.

via Japanese 波

StepLanguageWordMeaning
1Japanese波wave
2Middle Chinese波—

via Japanese 長

StepLanguageWordMeaning
1Japanese長chief, head, leader; strong point; major
2Middle Chinese長—
Every word from Middle Chinese 波 →Every word from Japanese 波 →