Where does “子雀” come from?

子雀 (Japanese) comes from Japanese 子, from Japanese 鼠, from Japanese nezumi.

Ancestry of “子雀”, step by step

子雀 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

StepLanguageWordMeaning
1Japanesea Eurasian tree sparrow
Every word from Japanese nezumiEvery word from Japanese Every word from Japanese