Where does “locking” come from?

Locking comes from Old English loc, from Proto-Germanic luką, from Proto-Indo-European lewg-, meaning to bend or turn.

locking (English): present participle of lock; The act by which...

Definitions

Step	Language	Word	Meaning
1	English	Lock	—
2	Middle English	lok	lock
3	Old English	lāc	play, sport, strife, battle, sacrifice, offering,...
4	Proto-West Germanic	laik	—
5	Proto-Germanic	laikaz	dance; game, sport; hymn
6	Proto-Indo-European	leyǵ-	to bind, tie

locking — Etymology, Origin & Word History | Etymology Explorer