Where does “доказательный” come from?

доказательный (Russian) comes from Russian доказа́ть, from Russian каза́ть, from Proto-Slavic kāzàti, from Proto-Indo-European kʷeǵ-, from Proto-Indo-European kʷeḱ- — to see; to look.

доказательный (Russian): demonstrative, conclusive

Definitions

  1. demonstrative, conclusive

Ancestry of “доказательный”, step by step

StepLanguageWordMeaning
1Russianдоказа́тьto prove, to demonstrate
2Russianказа́тьto show
3Proto-Slavickāzàtito show
4Proto-Indo-Europeankʷeǵ-—
5Proto-Indo-Europeankʷeḱ-to see; to look
Every word from Proto-Indo-European kʷeḱ- →Every word from Proto-Indo-European kʷeǵ- →Every word from Proto-Slavic kāzàti →