Where does “一月” come from?
一月 (Japanese) comes from Japanese 月, from Old Japanese 月, from Proto-Japonic tukuy, from Proto-Japonic tuku.
一月 (Japanese): January; one month
Ancestry of “一月”, step by step
一月 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 一
| Step | Language | Word | Meaning |
|---|
| 1 | Japanese | 一 | one, 1; "term relating to the number one"; unity |
| 2 | Japanese | 始め | beginning, the start of an activity or time... |
| 3 | Japanese | 始める | begin; start; initiate; originate |