Where does “κάτι” come from?

κάτι (Byzantine Greek) comes from Byzantine Greek κἄν, from Ancient Greek καί — and.

Ancestry of “κάτι”, step by step

StepLanguageWordMeaning
1Byzantine Greekκἄν—
2Ancient Greekκαίand
Every word from Ancient Greek καί →Every word from Byzantine Greek κἄν →