Where does “очный” come from?
очный (Russian) comes from Russian о́ко, from Old East Slavic око, from Proto-Slavic ȍko, from Proto-Balto-Slavic ak-, from Proto-Indo-European h₃ókʷs, from Proto-Indo-European h₃ekʷ- — to see; eye.
очный (Russian): face to face; classroom
Ancestry of “очный”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Russian | о́ко | eye |
| 2 | Old East Slavic | око | eye |
| 3 | Proto-Slavic | ȍko | — |
| 4 | Proto-Balto-Slavic | ak- | eye |
| 5 | Proto-Indo-European | h₃ókʷs | eye |
| 6 | Proto-Indo-European | h₃ekʷ- | to see; eye |