Where does “流星” come from?

流星 (Japanese) comes from Japanese 流, from Middle Chinese 流.

流星 (Japanese): a meteor; a shooting star; Alternative spelling...

Definitions

  1. a meteor; a shooting star; Alternative spelling...

Ancestry of “流星”, step by step

流星 traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japanesethe flow of water or something like water; art...
2Middle Chinese

via Japanese

StepLanguageWordMeaning
1Japanesea star; the Star; a celestial body
Every word from Middle Chinese Every word from Japanese
流星 — Etymology, Origin & Word History | Etymology Explorer