Kavir languages

Kavir, or ambiguously Biyabanaki, is a group of Western Iranian languages spoken in the Kavir valley in central Iran.
The Kavir languages are Farvi, Garma'i, Khuri, and Iraji.

Farvi

Farvi is a language spoken in the town of Farrokhi. Despite being classified as Northwestern Iranian, it shares certain similarities with Southwestern languages. Further, it shares some sound changes with Balochi and Kurdish which distinguish them from other Northwestern languages.