Where does “Ruy” come from?

Ruy (Spanish) comes from Old Irish rúad, from Proto-Celtic roudos, from Proto-Indo-European h₁rewdʰ- — red.

Ancestry of “Ruy”, step by step

StepLanguageWordMeaning
1Old Irishrúadred, reddish
2Proto-Celticroudosred
3Proto-Indo-Europeanh₁rewdʰ-red

Words derived from “Ruy”

Every word from Proto-Indo-European h₁rewdʰ- →Every word from Proto-Celtic roudos →Every word from Old Irish rúad →