Where does “dʰalg-” come from?

dʰalg- (Proto-Indo-European) comes from Proto-Indo-European dʰelg- — a cutting tool; to stick; needle, pin.

Ancestry of “dʰalg-”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	dʰelg-	a cutting tool; to stick; needle, pin

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