Where does “tъknǫti” come from?

tъknǫti (Proto-Slavic) comes from Proto-Indo-European (s)tewk-, from Proto-Indo-European (s)tew- — to push, to hit.

Ancestry of “tъknǫti”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	(s)tewk-	to push, press; to strike, beat; to stick into,...
2	Proto-Indo-European	(s)tew-	to push, to hit

tъknǫti — Etymology, Origin & Word History | Etymology Explorer