Where does “Białowieżec” come from?

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

Ancestry of “Białowieżec”, step by step

Białowieżec traces back through two separate lines of ancestry.

via Polish Biały

StepLanguageWordMeaning
1PolishBiaływhite
2Old Polishbiaływhite
3Proto-Slavic*bě̃lъwhite the brightest color

via Polish wieża

StepLanguageWordMeaning
1Polishwieżatower; rook
2Proto-Slavicvěžahouse-wagon, kibitka; tent; movable/traveling...
Every word from Proto-Slavic *bě̃lъ →Every word from Old Polish biały →Every word from Polish Biały →