Where does “Rubikon” come from?

Rubikon (Polish) comes from Latin Rubicon, from Latin rubeus, from Latin ruber, from Proto-Italic ruðros, from Proto-Indo-European h₁rudʰrós, from Proto-Indo-European h₁rewdʰ- — red.

Ancestry of “Rubikon”, step by step

StepLanguageWordMeaning
1LatinRubiconthe Rubicon
2Latinrubeusred, reddish; of or pertaining to the bramble...
3Latinruberred approximately like red ochre (which had a traditional status among the Romans); red that was both common and dignified, somewhat associated with pigment
4Proto-Italicruðrosred
5Proto-Indo-Europeanh₁rudʰrósred
6Proto-Indo-Europeanh₁rewdʰ-red
Every word from Proto-Indo-European h₁rewdʰ-