Where does “одноместный” come from?
одноместный (Russian) comes from Russian одно-, from Russian оди́н, from Old East Slavic оди́нъ, from Proto-Slavic edìnъ, from Proto-Balto-Slavic edīˀnas, from Proto-Balto-Slavic aiˀnas, from Proto-Indo-European óynos — one; single.
одноместный (Russian): single, for one
Ancestry of “одноместный”, step by step