Where does “अंचल” come from?

अंचल (Hindi) comes from Sanskrit अञ्चल, from Sanskrit अल.

अंचल (Hindi): region; anchal

Definitions

Step	Language	Word	Meaning
1	Sanskrit	अञ्चल	border or end of a garment
2	Sanskrit	अल	—

अंचल — Etymology, Origin & Word History | Etymology Explorer