Where does “درست” come from?
درست (Classical Persian) comes from Middle Persian drwst', from Old Persian dᵘruvišta, from Proto-Iranian druwištah, from Proto-Iranian druwáh, from Proto-Indo-Iranian dʰruwás, from Proto-Indo-European dʰru-wó-s, from Proto-Indo-European -wós — Creates adjectives from verb stems.
Ancestry of “درست”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Middle Persian | drwst' | right; well, healthy |
| 2 | Old Persian | dᵘruvišta | — |
| 3 | Proto-Iranian | druwištah | superlative degree of *druwáh : right, true;... |
| 4 | Proto-Iranian | druwáh | firm, strong, sturdy, durable; healthy, whole,... |
| 5 | Proto-Indo-Iranian | dʰruwás | fixed, firm |
| 6 | Proto-Indo-European | dʰru-wó-s | — |
| 7 | Proto-Indo-European | -wós | Creates adjectives from verb stems |