Where does “узмакнути” come from?

узмакнути (Serbo-Croatian) comes from Serbo-Croatian ма̀кнути, from Proto-Slavic mъknǫti, from Proto-Indo-European (s)mewk-, from Proto-Indo-European smewg- — to slip, glide, slide; to slip, glide; be slimy.

узмакнути (Serbo-Croatian): to step back, draw back; to withdraw, retreat

Definitions

to step back, draw back; to withdraw, retreat

Ancestry of “узмакнути”, step by step

узмакнути traces back through two separate lines of ancestry.

via Serbo-Croatian ма̀кнути

Step	Language	Word	Meaning
1	Serbo-Croatian	ма̀кнути	to move
2	Proto-Slavic	mъknǫti	to move
3	Proto-Indo-European	(s)mewk-	to let loose, release; to slip away, escape, flee
4	Proto-Indo-European	smewg-	to slip, glide, slide; to slip, glide; be slimy

via Serbo-Croatian уз

Step	Language	Word	Meaning
1	Serbo-Croatian	уз	up, upward; next to, beside, alongside, by; with,...
2	Proto-Slavic	vъz	instead of, in return for; up; by, beside
3	Proto-Balto-Slavic	uź	on, at; in return for

Every word from Proto-Indo-European smewg- →Every word from Proto-Indo-European (s)mewk- →Every word from Proto-Slavic mъknǫti →