Where does “[[káti” come from?

[[káti (Old Czech) comes from Proto-Slavic kàjati, from Proto-Indo-European kʷōy-, from Proto-Indo-European kʷey- — to pay; to avenge.

Ancestry of “[[káti”, step by step

StepLanguageWordMeaning
1Proto-Slavickàjatito repent, to regret
2Proto-Indo-Europeankʷōy-
3Proto-Indo-Europeankʷey-to pay; to avenge

Words derived from “[[káti

Every word from Proto-Indo-European kʷey-Every word from Proto-Indo-European kʷōy-Every word from Proto-Slavic kàjati