Where does “汗をかく” come from?
汗をかく (Japanese) comes from Japanese を, from Proto-Japonic wo — accusative marker; away from, off.
汗をかく (Japanese): to sweat
Ancestry of “汗をかく”, step by step
汗をかく traces back through 3 separate lines of ancestry.
via Japanese を
| Step | Language | Word | Meaning |
|---|
| 1 | Japanese | を | A case particle; A conjunctive particle, usually... |
| 2 | Proto-Japonic | wo | accusative marker; away from, off |
via Japanese 汗
| Step | Language | Word | Meaning |
|---|
| 1 | Japanese | 汗 | sweat |
| 2 | Middle Chinese | かん | — |
via Japanese 掻く
| Step | Language | Word | Meaning |
|---|
| 1 | Japanese | 掻く | to scratch; Dummy verb for various nouns |
| 2 | Proto-Turkic | KAk- | to hit, knock, tear |