Where does “затачивать” come from?
затачивать (Russian) comes from Russian заточи́ть, from Russian точи́ть, from Proto-Slavic točiti, from Proto-Slavic tekti, from Proto-Balto-Slavic tektej, from Proto-Indo-European tekʷ- — to run, to flow.
затачивать (Russian): to sharpen
Ancestry of “затачивать”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Russian | заточи́ть | to sharpen |
| 2 | Russian | точи́ть | to shed; sharpen; to wear away |
| 3 | Proto-Slavic | točiti | to cause to flow, run |
| 4 | Proto-Slavic | tekti | to run, to flow |
| 5 | Proto-Balto-Slavic | tektej | — |
| 6 | Proto-Indo-European | tekʷ- | to run, to flow |