Fergana Kipchak language
Fergana Kipchak, also Kipchak Uzbek, is a recently extinct Kipchak Turkic language of the Kipchak-Nogai branch formerly spoken in the Fergana Valley of Central Asia. In some districts of the Fergana Region, linguistic features of Fergana Kipchak are seen, especially in phonetics. These districts are Bagʻdod, Buvayda, Uchkoʻprik and parts of neighboring districts. Many idioms spoken in Uzbekistan that are now considered part of the Kyrgyz language are actually Fergana Kipchak. According to the E. D. Polivanov, the Fergana Kipchak language existed as a separate idiom as late as in the 1920s.
Fergana Kipchak, also Kipchak Uzbek, is a recently extinct Kipchak Turkic language of the Kipchak-Nogai branch formerly spoken in the Fergana Valley of Central Asia. In some districts of the Fergana Region, linguistic features of Fergana Kipchak are seen, especially in phonetics. These districts are Bagʻdod, Buvayda, Uchkoʻprik and parts of neighboring districts. Many idioms spoken in Uzbekistan that are now considered part of the Kyrgyz language are actually Fergana Kipchak. According to the E. D. Polivanov, the Fergana Kipchak language existed as a separate idiom as late as in the 1920s. According to A. N. Samoilovich, some descendants of Fergana Kipchak-speakers identify as a separate people from the Uzbeks, Kazakhs or Kyrgyz, although closely related to the latter.
Some dialects of Fergana Kipchak seem closely related to the Kipchak–Nogay languages.

See also
Kipchaks
Kipchak languages
Cumans
Cuman language

References
External links
Особенности взаимного притяжения народов Archived 2012-02-24 at the Wayback Machine (in Russian)
Кыргызы Archived 2015-09-24 at the Wayback Machine (in Russian)
Кипчакский компонент в этногенезе киргизов Archived 2019-12-27 at the Wayback Machine (in Russian)
К вопросу о кыргызах и Фергане Archived 2012-02-24 at the Wayback Machine (in Russian)
Саяно-Алтай и Тянь-Шань Archived 2012-02-24 at the Wayback Machine (in Russian)
Кожом-Шукур (in Russian)
Историографический обзор проблемы происхождения киргизов (in Russian)