Where does “ostrъ” come from?
ostrъ (Proto-Slavic) comes from Proto-Balto-Slavic aśras, from Proto-Indo-European *h₂eḱrós, from Proto-Indo-European h₂eḱ- — sharp.
ostrъ (Proto-Slavic): sharp
Ancestry of “ostrъ”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Balto-Slavic | aśras | sharp |
| 2 | Proto-Indo-European | *h₂eḱrós | — |
| 3 | Proto-Indo-European | h₂eḱ- | sharp |
Words derived from “ostrъ”