Where does “chybíte mi” come from?

chybíte mi (Czech) comes from Czech chybit, from Proto-Slavic xybiti.

Ancestry of “chybíte mi”, step by step

Step	Language	Word	Meaning
1	Czech	chybit	to make a mistake, to err; to miss
2	Proto-Slavic	xybiti	—

chybíte mi — Etymology, Origin & Word History | Etymology Explorer