Where does “春日” come from?

春日 (Chinese) comes from Japanese 春日, from Old Japanese 日, from Proto-Japonic *pi — day, sun.

春日 (Chinese): spring; spring days; spring sun

Definitions

  1. spring; spring days; spring sun

Ancestry of “春日”, step by step

StepLanguageWordMeaning
1Japanese春日the spring sun; a day in springtime
2Old Japanese日the sun; sunlight, sunshine; daytime, daylight
3Proto-Japonic*piday, sun
Every word from Proto-Japonic *pi →Every word from Old Japanese 日 →Every word from Japanese 春日 →
春日 — Etymology, Origin & Word History | Etymology Explorer