Where does “res” come from?
res (Old French) comes from Latin rāsus, from Latin rādō, from Proto-Italic razdō, from Proto-Indo-European rh₁d-dʰ-, from Proto-Indo-European reh₁d- — to scrape, scratch, gnaw.
Ancestry of “res”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Latin | rāsus | — |
| 2 | Latin | rādō | — |
| 3 | Proto-Italic | razdō | — |
| 4 | Proto-Indo-European | rh₁d-dʰ- | — |
| 5 | Proto-Indo-European | reh₁d- | to scrape, scratch, gnaw |