Where does “Jedynak” come from?
Jedynak (Polish) comes from Polish jedyny, from Old Polish jedyny, from Proto-Slavic edìnъ, from Proto-Balto-Slavic edīˀnas, from Proto-Balto-Slavic aiˀnas, from Proto-Indo-European óynos — one; single.
Ancestry of “Jedynak”, step by step