Where does “夜鷹” come from?

夜鷹 (Japanese) comes from Japanese 夜, from Old Japanese よる, from Proto-Japonic yoru, from Proto-Japonic yo — night.

夜鷹 (Japanese): grey nightjar, Caprimulgus jotaka

Definitions

  1. grey nightjar, Caprimulgus jotaka

Ancestry of “夜鷹”, step by step

夜鷹 traces back through two separate lines of ancestry.

via Japanese 夜

StepLanguageWordMeaning
1Japanese夜night, evening
2Old Japaneseよる—
3Proto-Japonicyorunight
4Proto-Japonicyonight

via Japanese 鷹

StepLanguageWordMeaning
1Japanese鷹a hawk
Every word from Proto-Japonic yo →Every word from Proto-Japonic yoru →Every word from Old Japanese よる →