Where does “rubi” come from?

rubi (Old Portuguese) comes from Catalan robí, from Old French rubin, from Medieval Latin rubinus, from Latin ruber, from Proto-Italic ruðros, from Proto-Indo-European h₁rudʰrós, from Proto-Indo-European h₁rewdʰ- — red.

Ancestry of “rubi”, step by step

StepLanguageWordMeaning
1Catalanrobíruby
2Old Frenchrubinruby
3Medieval Latinrubinusruby, carbuncle; carbuncle, ruby
4Latinruberred approximately like red ochre (which had a traditional status among the Romans); red that was both common and dignified, somewhat associated with pigment
5Proto-Italicruðrosred
6Proto-Indo-Europeanh₁rudʰrósred
7Proto-Indo-Europeanh₁rewdʰ-red

Words derived from “rubi

Every word from Proto-Indo-European h₁rewdʰ-Every word from Proto-Indo-European h₁rudʰrósEvery word from Proto-Italic ruðros