Where does “βουρκόλακας” come from?

βουρκόλακας (Byzantine Greek) comes from Bulgarian върколак, from Proto-Slavic vьlkolàkъ — werewolf.

Ancestry of “βουρκόλακας”, step by step

StepLanguageWordMeaning
1Bulgarianвърколакwerewolf
2Proto-Slavicvьlkolàkъwerewolf

Words derived from “βουρκόλακας

Every word from Proto-Slavic vьlkolàkъEvery word from Bulgarian върколак