Indo-Aryan superstrate in Mitanni
The ancient Middle Eastern state of Mitanni (modern-day Northeast Syria, Southeastern Turkey, 2nd millennium BCE) used a dialect of Hurrian as its main language. This dialect however contains some loanwords of evidently Indo-Aryan origin, i.e.
Source: Wikipedia — Indo-Aryan superstrate in Mitanni (CC BY-SA 4.0)