Where does “毎日” come from?

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

毎日 (Japanese): every day; daily

Definitions

  1. every day; daily

Ancestry of “毎日”, step by step

毎日 traces back through two separate lines of ancestry.

via Japanese 日

StepLanguageWordMeaning
1Japanese日Sunday
2Old Japanese日the sun; sunlight, sunshine; daytime, daylight
3Proto-Japonic*piday, sun

via Japanese 毎

StepLanguageWordMeaning
1Japanese毎each, every, per
2Middle Chinese每—
Every word from Proto-Japonic *pi →Every word from Old Japanese 日 →Every word from Japanese 日 →