Where does “Białobrzeska” come from?

Białobrzeska (Polish) comes from Polish Białobrzeski, from Polish Białobrzegi, from Polish brzeg, from Proto-Slavic bergъ, from Proto-Balto-Slavic *bérgas, from Proto-Indo-European *bʰérǵʰos, from Proto-Indo-European bʰerǵʰ- — to rise; high, lofty; hill, mountain.

Ancestry of “Białobrzeska”, step by step

StepLanguageWordMeaning
1PolishBiałobrzeski
2PolishBiałobrzegi
3Polishbrzegcoast, shoreline, bank; the area along the edge...
4Proto-Slavicbergъhill; slope, cliff?; bank, shore?, coast?
5Proto-Balto-Slavic*bérgashill
6Proto-Indo-European*bʰérǵʰoshill
7Proto-Indo-Europeanbʰerǵʰ-to rise; high, lofty; hill, mountain
Every word from Proto-Indo-European bʰerǵʰ-Every word from Proto-Indo-European *bʰérǵʰosEvery word from Proto-Balto-Slavic *bérgas