Where does “ऐतराज़” come from?

ऐतराज़ (Hindi) comes from Arabic اِعْتِرَاض.

ऐतराज़ (Hindi): objection, protest

Definitions

Step	Language	Word	Meaning
1	Arabic	اِعْتِرَاض	—

ऐतराज़ — Etymology, Origin & Word History | Etymology Explorer