Where does “電圧計” come from?

電圧計 (Japanese) comes from Japanese 電圧, from Japanese 電, from Middle Chinese 電.

電圧計 (Japanese): voltmeter

Definitions

  1. voltmeter

Ancestry of “電圧計”, step by step

電圧計 traces back through two separate lines of ancestry.

via Japanese 電圧

StepLanguageWordMeaning
1Japanese電圧voltage
2Japanese電lightning
3Middle Chinese電—

via Japanese 計

StepLanguageWordMeaning
1Japanese計plan, total; -meter
2Middle Chinese計—
Every word from Middle Chinese 電 →Every word from Japanese 電 →Every word from Japanese 電圧 →