Where does “ruiu” come from?

ruiu (Vulgar Latin) comes from Latin rubeus, from Latin ruber, from Proto-Italic ruðros, from Proto-Indo-European h₁rudʰrós, from Proto-Indo-European h₁rewdʰ- — red.

Ancestry of “ruiu”, step by step

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

Words derived from “ruiu

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