Where does “rooie” come from?

rooie (Dutch) comes from Dutch rood, from Middle Dutch rôot, from Old Dutch rōt, from Proto-West Germanic raud, from Proto-Germanic raudaz, from Proto-Indo-European h₁rowdʰós, from Proto-Indo-European h₁rewdʰ- — red.

rooie (Dutch): A redheaded person; A socialist, a communist; A...