Where does “記念日” come from?

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

記念日 (Japanese): anniversary

Definitions

  1. anniversary

Ancestry of “記念日”, step by step

記念日 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 記念

StepLanguageWordMeaning
1Japanese記念memorial; commemorate, celebrate, mark

Words derived from “記念日”

Every word from Proto-Japonic *pi →Every word from Old Japanese 日 →Every word from Japanese 日 →