Where does “Biallas” come from?

Biallas (German) comes from Polish Białas, from Polish Biały, from Old Polish biały, from Proto-Slavic *bě̃lъ — white the brightest color.

Ancestry of “Biallas”, step by step

StepLanguageWordMeaning
1PolishBiałaswhite-haired person
2PolishBiaływhite
3Old Polishbiaływhite
4Proto-Slavic*bě̃lъwhite the brightest color
Every word from Proto-Slavic *bě̃lъ →Every word from Old Polish biały →Every word from Polish Biały →