Where does “рубиновый” come from?
рубиновый (Russian) comes from Russian руби́н, from Latin rubīnus, from Latin rubeus, from Latin ruber, from Proto-Italic ruðros, from Proto-Indo-European h₁rudʰrós, from Proto-Indo-European h₁rewdʰ- — red.
рубиновый (Russian): ruby
Ancestry of “рубиновый”, step by step