Where does “東口” come from?
東口 (Japanese) comes from Japanese 東, from Old Japanese 東, from Old Japanese 天, from Proto-Japonic *amay.
東口 (Japanese): east exit
Ancestry of “東口”, step by step
東口 traces back through two separate lines of ancestry.
via Japanese 東
| Step | Language | Word | Meaning |
|---|
| 1 | Japanese | 東 | the east; the Orient; an easterly |
| 2 | Old Japanese | 東 | the east; the lands east of the 都 |
| 3 | Old Japanese | 天 | sky, heavens |
| 4 | Proto-Japonic | *amay | — |
via Japanese 口
| Step | Language | Word | Meaning |
|---|
| 1 | Japanese | 口 | mouth; opening; the mouth |
| 2 | Japanese | くち | mouth |
| 3 | Japanese | 朽ちる | — |