Where does “wszako” come from?

wszako (Old Polish) comes from Proto-Slavic *vьśako — any, every.

Ancestry of “wszako”, step by step

StepLanguageWordMeaning
1Proto-Slavic*vьśakoany, every

Words derived from “wszako

Every word from Proto-Slavic *vьśako
wszako — Etymology, Origin & Word History | Etymology Explorer