Of contested provenance, the term sart refers to oasis-dwellers of Chinese and former Soviet Central Asia.  It’s the antonym of ‘nomad.’  At one time it might have had a connotation of “Persian-speaker” but that’s not the current sense of it.  Possibly also pejorative.  V.V. Barthold, the Gibbon of Turkestan, I think had much to say on this matter.  (Gibbon is the Barthold of Rome.)  Wikipedia notes that “the Muslim, Mongol-speaking Dongxiang people of Northwestern China call themselves Sarta or Santa. It is not clear if there is any connection between this term and the Sarts of Central Asia.”