Where does “безымянный” come from?
безымянный (Russian) comes from Old East Slavic безименьнꙑи, from Proto-Slavic bezimenьnъ, from Proto-Slavic jьmę, from Proto-Balto-Slavic *inˀmin, from Proto-Indo-European h₁nómn̥, from Proto-Indo-European h₃neh₃- — to name.
безымянный (Russian): anonymous, nameless
Ancestry of “безымянный”, step by step