Where does “dokazować” come from?

dokazować (Polish) comes from Polish dokazać, from Polish kazać, from Proto-Slavic kāzàti, from Proto-Indo-European kʷeǵ-, from Proto-Indo-European kʷeḱ- — to see; to look.

Ancestry of “dokazować”, step by step

StepLanguageWordMeaning
1Polishdokazaćto achieve, to accomplish
2Polishkazaćto order, to tell someone to do something
3Proto-Slavickāzàtito show
4Proto-Indo-Europeankʷeǵ-—
5Proto-Indo-Europeankʷeḱ-to see; to look
Every word from Proto-Indo-European kʷeḱ- →