Where does “bezpiecznie” come from?

bezpiecznie (Kashubian) comes from Polish bezpieczny, from Old Polish bez, from Proto-Slavic bъzъ, from Proto-Indo-European bʰeh₂ǵos — beech.

Ancestry of “bezpiecznie”, step by step

StepLanguageWordMeaning
1Polishbezpiecznysafe, secure
2Old Polishbezelder
3Proto-Slavicbъzъelderberry
4Proto-Indo-Europeanbʰeh₂ǵosbeech
Every word from Proto-Indo-European bʰeh₂ǵos →Every word from Proto-Slavic bъzъ →Every word from Old Polish bez →