What is "eskivang"

Eskivang (, also Romanized as Eskīvang, Eskayūnak, Eskioonag, Eskīūnak, and Eskīvank; also known as Eskībang and Iskībang) is a village in Momenabad Rural District, in the Central District of Sarbisheh County, South Khorasan Province, Iran. At the 2006 census, its population was 356, in 92 families.