Where does “九月” come from?
九月 (Japanese) comes from Japanese 月, from Old Japanese 月, from Proto-Japonic tukuy, from Proto-Japonic tuku.
九月 (Japanese): September
Ancestry of “九月”, step by step
九月 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 九
| Step | Language | Word | Meaning |
|---|
| 1 | Japanese | 九 | nine; ninth; the ninth |
| 2 | Old Japanese | 九 | — |