Where does “болярин” come from?

болярин (Bulgarian) comes from Old Church Slavonic болꙗринъ, from Proto-Slavic bojь, from Proto-Indo-European bʰoyh₂ós, from Proto-Indo-European bʰeyh₂- — to fear, be afraid; to strike, hit; to hew, cut.

болярин (Bulgarian): boyar title of nobility in early Slavic and West Turkic countries

Definitions

  1. boyar title of nobility in early Slavic and West Turkic countries

Ancestry of “болярин”, step by step

StepLanguageWordMeaning
1Old Church Slavonicболꙗринъaristocrat, nobleman, boyar
2Proto-Slavicbojьbattle, fight
3Proto-Indo-Europeanbʰoyh₂ós—
4Proto-Indo-Europeanbʰeyh₂-to fear, be afraid; to strike, hit; to hew, cut
Every word from Proto-Indo-European bʰeyh₂- →Every word from Proto-Indo-European bʰoyh₂ós →Every word from Proto-Slavic bojь →