Where does “беса” come from?

беса (Bulgarian) comes from Albanian besë, from Proto-Albanian baitši, from Proto-Indo-European bʰeydʰ- — to compel, force; to trust.

беса (Bulgarian): word of honor, oath, vow among ethnic Albanians

Definitions

  1. word of honor, oath, vow among ethnic Albanians

Ancestry of “беса”, step by step

StepLanguageWordMeaning
1Albanianbesëpledge, word of honor; vow to avenge a murder;...
2Proto-Albanianbaitši—
3Proto-Indo-Europeanbʰeydʰ-to compel, force; to trust
Every word from Proto-Indo-European bʰeydʰ- →Every word from Proto-Albanian baitši →Every word from Albanian besë →
беса — Etymology, Origin & Word History | Etymology Explorer