Where does “ला-” come from?

ला- (Hindi) comes from Arabic لَا, from Proto-Semitic lā — not; no.

ला- (Hindi): without, lacking

Definitions

Step	Language	Word	Meaning
1	Arabic	لَا	not; no, not
2	Proto-Semitic	lā	not; no

ला- — Etymology, Origin & Word History | Etymology Explorer