Where does “Bérégovoy” come from?

Bérégovoy (French) comes from Russian береговой, from Russian берёг, 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.

Ancestry of “Bérégovoy”, step by step

StepLanguageWordMeaning
1Russianбереговойbeach, coast; coastal
2Russianберёгmasculine singular past indicative imperfective...
3Old East Slavicберегъbank; shore
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