Tabassaran is a North East Caucasian language spoken by about 100,000 people mainly in the Russian republic of Dagestan, where it is one of the 14 official state languages. There are also speakers of Tabassaran in Azerbaijan, Kazakhstan, Turkmenistan, and Uzbekistan. There are two main dialects of Tabassaran: Southern Tabassaran and Northern Tabassaran, and written Tabassaran is based on the southern dialect.
From the beginning of the 20th Century to 1928, Tabassaran was written with the Arabic alphabet, after which it was written with the Latin alphabet. Then in 1937 a version of the Cyrillic alphabet was adopted to write Tabassaran.
Information about the Tabassaran language
http://languageserver.uni-graz.at/ls/desc?id=31&type;=r
http://en.wikipedia.org/wiki/Tabassaran_language
Northeast Caucasian: Aghul, Akhvakh, Archi, Avar, Budukh, Chechen, Dargwa, Godoberi, Hinukh, Hunzib, Ingush, Khwarshi, Lak, Lezgian, Tabassaran, Tsez, Udi
Northwest Caucasian: Abaza, Abhkaz, Adyghe, Kabardian, Ubykh
South Caucasian (Kartvelian): Georgian, Laz, Mingrelian, Svan