Where does “Rudol” come from?

Rudol (Polish) comes from Polish Rudy, from Proto-Slavic rudъ, from Proto-Balto-Slavic roudos, from Proto-Indo-European h₁rowdʰ-o-, from Proto-Indo-European h₁rewdʰ- — red.

Ancestry of “Rudol”, step by step

StepLanguageWordMeaning
1PolishRudyrust-colored
2Proto-Slavicrudъred, blood red, reddish; ginger; brown
3Proto-Balto-Slavicroudos
4Proto-Indo-Europeanh₁rowdʰ-o-
5Proto-Indo-Europeanh₁rewdʰ-red
Every word from Proto-Indo-European h₁rewdʰ-Every word from Proto-Indo-European h₁rowdʰ-o-Every word from Proto-Balto-Slavic roudos