Where does “来る日” come from?

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

来る日 (Japanese): the coming days

Definitions

  1. the coming days

Ancestry of “来る日”, step by step

来る日 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 来る

StepLanguageWordMeaning
1Japanese来るTo come; To come, to arrive
2Japanese来next, coming; since, in; to approach one's...
3Middle Chinese來—
Every word from Proto-Japonic *pi →Every word from Old Japanese 日 →Every word from Japanese 日 →