Where does “यार” come from?

यार (Rajasthani) comes from Persian یار, from Persian یاور — assistant; police officer; major.

यार (Rajasthani): friend; companion; paramour

Definitions

Step	Language	Word	Meaning
1	Persian	یار	friend, lover, companion; assistant, defender,...
2	Persian	یاور	assistant; police officer; major

यार — Etymology, Origin & Word History | Etymology Explorer