Where does “сре́дний” come from?
сре́дний (Russian) comes from Old Church Slavonic срѣдьнъ, from Proto-Slavic serdьnъ, from Proto-Slavic serda, from Proto-Balto-Slavic śerd-, from Proto-Indo-European ḱerd- — heart.
сре́дний (Russian): middle
Definitions
- middle