Where does “歲月日” come from?

歲月日 (Old Japanese) comes from Old Japanese 月, from Proto-Japonic tukuy, from Proto-Japonic tuku.

歲月日 (Old Japanese): a date; years, months, and days; times

Definitions

  1. a date; years, months, and days; times

Ancestry of “歲月日”, step by step

歲月日 traces back through two separate lines of ancestry.

via Old Japanese 月

StepLanguageWordMeaning
1Old Japanese月the moon; a month; a menstrual cycle,...
2Proto-Japonictukuymoon
3Proto-Japonictuku—

via Old Japanese 日

StepLanguageWordMeaning
1Old Japanese日the sun; sunlight, sunshine; daytime, daylight
2Proto-Japonic*piday, sun
Every word from Proto-Japonic tuku →Every word from Proto-Japonic tukuy →Every word from Old Japanese 月 →
歲月日 — Etymology, Origin & Word History | Etymology Explorer