Where does “Czyz” come from?

Czyz (English) comes from Polish Czyż, from Polish czy, from Proto-Slavic či, from Proto-Indo-European *kʷís.

Ancestry of “Czyz”, step by step

StepLanguageWordMeaning
1PolishCzyżinterrogative particle: introduces a yes-no question
2Polishczy"interrogative particle: introduces a yes-no...
3Proto-Slavicčiif, whether; or
4Proto-Indo-European*kʷís—
Every word from Proto-Indo-European *kʷís →Every word from Proto-Slavic či →Every word from Polish czy →
Czyz — Etymology, Origin & Word History | Etymology Explorer