Nafusi (also spelled Nefusi, Berber name: Maziɣ or Tanfusit) is a Berber language spoken in the Nafusa Mountains (Drar n infusen), a large area in northwestern Libya. Its primary speakers are the Ibadite communities around Jadu, Nalut (Lalut) and Yafran. The dialect of Yefren in the east differs somewhat from that of Nalut and Jadu in the west. A number of Old Nafusi phrases appear in Ibadite manuscripts as early as the 12th century, representing some of the earliest manuscript records of Berber.