Where does “боз” come from?

боз (Ukrainian) comes from Proto-Slavic bъzъ, from Proto-Indo-European bʰeh₂ǵos — beech.

Ancestry of “боз”, step by step

StepLanguageWordMeaning
1Proto-Slavicbъzъelderberry
2Proto-Indo-Europeanbʰeh₂ǵosbeech
Every word from Proto-Indo-European bʰeh₂ǵos →Every word from Proto-Slavic bъzъ →