Where does “stlocus” come from?

stlocus (Old Latin) comes from Proto-Italic stlokos, from Proto-Indo-European stel- — to put, to place; to locate.

Ancestry of “stlocus”, step by step

Step	Language	Word	Meaning
1	Proto-Italic	stlokos	—
2	Proto-Indo-European	stel-	to put, to place; to locate

stlocus — Etymology, Origin & Word History | Etymology Explorer