Where does “Brezoi” come from?

Brezoi (English) comes from Romanian Brezoi, from Romanian breaz, from Bulgarian бреза, from Proto-Slavic bèrza, from Proto-Balto-Slavic berźas, from Proto-Indo-European bʰerHǵos — birch.

Ancestry of “Brezoi”, step by step

StepLanguageWordMeaning
1RomanianBrezoi—
2Romanianbreazwhite-striped
3Bulgarianбрезаbirch
4Proto-Slavicbèrzabirch
5Proto-Balto-Slavicberźas—
6Proto-Indo-EuropeanbʰerHǵosbirch
Every word from Proto-Indo-European bʰerHǵos →Every word from Proto-Balto-Slavic berźas →Every word from Proto-Slavic bèrza →