Where does “въгъл” come from?

въгъл (Bulgarian) comes from Proto-Slavic ǫglь, from Proto-Balto-Slavic anˀglís, from Proto-Indo-European h₁óngʷl̥, from Proto-Indo-European h₁engʷ- — to burn; fire.

Ancestry of “въгъл”, step by step

StepLanguageWordMeaning
1Proto-Slavicǫglьcoal
2Proto-Balto-Slavicanˀglíscoal, charcoal
3Proto-Indo-Europeanh₁óngʷl̥charcoal
4Proto-Indo-Europeanh₁engʷ-to burn; fire
Every word from Proto-Indo-European h₁engʷ- →Every word from Proto-Indo-European h₁óngʷl̥ →Every word from Proto-Balto-Slavic anˀglís →