Where does “नास्तौ” come from?

नास्तौ (Rajasthani) comes from Classical Persian نَاشْتَا.

नास्तौ (Rajasthani): breakfast

Definitions

Step	Language	Word	Meaning
1	Classical Persian	نَاشْتَا	—

नास्तौ — Etymology, Origin & Word History | Etymology Explorer