Where does “Brejeni” come from?

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

Ancestry of “Brejeni”, step by step

StepLanguageWordMeaning
1RomanianBreazu—
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 →