Where does “脈拍計” come from?

脈拍計 (Japanese) comes from Japanese 計, from Middle Chinese 計.

脈拍計 (Japanese): pulse rate monitor

Definitions

  1. pulse rate monitor

Ancestry of “脈拍計”, step by step

脈拍計 traces back through two separate lines of ancestry.

via Japanese 計

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

via Japanese 脈拍

StepLanguageWordMeaning
1Japanese脈拍pulse regular beat caused by the heart
Every word from Middle Chinese 計 →Every word from Japanese 計 →