8,000 (2011), increasing. No monolinguals. Ethnic population: 8,000.
Nurestan province: Sech, Shupu (Ishtivi, Shtevgrom), Ucu, Ushut, and Zumu villages; Prasun (Parun) valley on upper reaches of Pech river; small border area with Badakhshan province.
Upper Wasi-Weri (Ishtivi), Central Prasun, Lower Prasun (Pashki, Ushut). Related to Kati [bsh] but more archaic. The most aberrant Nuristani language. No mutual intelligibility of other Nuristani languages.