Where does “牛鮫” come from?

牛鮫 (Japanese) comes from Japanese 牛, from Middle Chinese 牛.

Ancestry of “牛鮫”, step by step

牛鮫 traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japanesecow, bull, ox, cattle; beef; Ox
2Middle Chinese

via Japanese

StepLanguageWordMeaning
1Japanesea shark
Every word from Middle Chinese Every word from Japanese
牛鮫 — Etymology, Origin & Word History | Etymology Explorer