Where does “rāst” come from?
rāst (Pahlavi) comes from Old Persian 𐎼𐎠𐎿𐎫, from Proto-Iranian *Hraštáh, from Proto-Indo-Iranian *Hraštás, from Proto-Indo-European h₃reǵtós, from Proto-Indo-European h₃reǵ- — to straighten, to right oneself; right; just.
Ancestry of “rāst”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old Persian | 𐎼𐎠𐎿𐎫 | right |
| 2 | Proto-Iranian | *Hraštáh | — |
| 3 | Proto-Indo-Iranian | *Hraštás | — |
| 4 | Proto-Indo-European | h₃reǵtós | straightened, right, upright |
| 5 | Proto-Indo-European | h₃reǵ- | to straighten, to right oneself; right; just |