Where does “uctít” come from?

uctít (Czech) comes from Czech ctít, from Old Czech čstíti, from Proto-Slavic čьstiti, from Proto-Indo-European (s)kʷit-tis.

Ancestry of “uctít”, step by step

Step	Language	Word	Meaning
1	Czech	ctít	to honor
2	Old Czech	čstíti	—
3	Proto-Slavic	čьstiti	—
4	Proto-Indo-European	(s)kʷit-tis	—