Where does “月日” come from?
月日 (Japanese) comes from Japanese 月, from Old Japanese 月, from Proto-Japonic tukuy, from Proto-Japonic tuku.
月日 (Japanese): date; moon and sun; time, years, days
Definitions
- date; moon and sun; time, years, days
Ancestry of “月日”, step by step
月日 traces back through two separate lines of ancestry.
via Japanese 月
| Step | Language | Word | Meaning |
|---|
| 1 | Japanese | 月 | the moon; a natural satellite; moonlight,... |
| 2 | Old Japanese | 月 | the moon; a month; a menstrual cycle,... |
| 3 | Proto-Japonic | tukuy | moon |
| 4 | Proto-Japonic | tuku | — |
via Japanese 日
| Step | Language | Word | Meaning |
|---|
| 1 | Japanese | 日 | Sunday |
| 2 | Old Japanese | 日 | the sun; sunlight, sunshine; daytime, daylight |
| 3 | Proto-Japonic | *pi | day, sun |