Where does “演算子” come from?

演算子 (Japanese) comes from Japanese 子, from Japanese 鼠, from Japanese nezumi.

演算子 (Japanese): A function or other mapping that carries variables defined on a domain into another variable; operator

Definitions

  1. A function or other mapping that carries variables defined on a domain into another variable; operator

Ancestry of “演算子”, step by step

演算子 traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japanesea child; a girl, especially a dear or desired...
2Japanesea mouse or a rat; general term for members of...
3Japanesenezumi

via Japanese 演算

StepLanguageWordMeaning
1Japanese演算A procedure for generating a value from one or more other values; operation
Every word from Japanese nezumiEvery word from Japanese Every word from Japanese