Where does “правобережжя” come from?

правобережжя (Ukrainian) comes from Ukrainian берег, from Old East Slavic берегъ, 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.

правобережжя (Ukrainian): right bank

Definitions

  1. right bank

Ancestry of “правобережжя”, step by step

правобережжя traces back through two separate lines of ancestry.

via Ukrainian берег

StepLanguageWordMeaning
1Ukrainianберегbank, shore, coast, beach
2Old East Slavicберегъbank; shore
3Proto-Slavicbergъhill; slope, cliff?; bank, shore?, coast?
4Proto-Balto-Slavic*bérgashill
5Proto-Indo-European*bʰérǵʰoshill
6Proto-Indo-Europeanbʰerǵʰ-to rise; high, lofty; hill, mountain

via Ukrainian пра́вий

StepLanguageWordMeaning
1Ukrainianпра́вийright
2Proto-Slavicpravъright, straight; correct
3Proto-Balto-Slavicprōˀwas
4Proto-Indo-Europeanpreh₃-wo-s
5Proto-Indo-Europeanper-before, in front; first; to go through
6Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European bʰerǵʰ-Every word from Proto-Indo-European *bʰérǵʰosEvery word from Proto-Balto-Slavic *bérgas