Where does “väännin” come from?

väännin (Finnish) comes from Finnish vääntää, from Proto-Finnic väntädäk, from Proto-Germanic wandijaną, from Proto-Indo-European wendʰ- — to wind, to turn.

väännin (Finnish): knob

Definitions

knob

Ancestry of “väännin”, step by step

Step	Language	Word	Meaning
1	Finnish	vääntää	To wrench, twist
2	Proto-Finnic	väntädäk	—
3	Proto-Germanic	wandijaną	to turn
4	Proto-Indo-European	wendʰ-	to wind, to turn

Every word from Proto-Indo-European wendʰ- →

väännin — Etymology, Origin & Word History | Etymology Explorer