Where does “ഞായറാഴ്ച” come from?

ഞായറാഴ്ച (Malayalam) comes from Malayalam ആഴ്ച, from Proto-Dravidian *yĀḷ.

ഞായറാഴ്ച (Malayalam): Sunday

Definitions

Step	Language	Word	Meaning
1	Malayalam	ആഴ്ച	week
2	Proto-Dravidian	*yĀḷ	—

ഞായറാഴ്ച — Etymology, Origin & Word History | Etymology Explorer