Where does “заостри́ть” come from?
заостри́ть (Russian) comes from Russian остри́ть, from Russian о́стрый, from Proto-Slavic ostrъ, from Proto-Balto-Slavic aśras, from Proto-Indo-European *h₂eḱrós, from Proto-Indo-European h₂eḱ- — sharp.
Ancestry of “заостри́ть”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Russian | остри́ть | — |
| 2 | Russian | о́стрый | pointed, sharp; sharp, pointed |
| 3 | Proto-Slavic | ostrъ | sharp |
| 4 | Proto-Balto-Slavic | aśras | sharp |
| 5 | Proto-Indo-European | *h₂eḱrós | — |
| 6 | Proto-Indo-European | h₂eḱ- | sharp |
Words derived from “заостри́ть”