Where does “इत्तिफ़ाक़” come from?

इत्तिफ़ाक़ (Hindi) comes from Classical Persian اتفاق, from Arabic اِتِّفَاق.

इत्तिफ़ाक़ (Hindi): coincidence

Definitions

Step	Language	Word	Meaning
1	Classical Persian	اتفاق	—
2	Arabic	اِتِّفَاق	—

इत्तिफ़ाक़ — Etymology, Origin & Word History | Etymology Explorer