Where does “歩数計” come from?

歩数計 (Japanese) comes from Japanese 計, from Middle Chinese 計.

歩数計 (Japanese): pedometer

Definitions

  1. pedometer

Ancestry of “歩数計”, step by step

歩数計 traces back through two separate lines of ancestry.

via Japanese 計

StepLanguageWordMeaning
1Japanese計plan, total; -meter
2Middle Chinese計—

via Japanese 歩数

StepLanguageWordMeaning
1Japanese歩数number of steps
Every word from Middle Chinese 計 →Every word from Japanese 計 →