Nafusi language
Nafusi is a Berber language spoken in the Nafusa Mountains, a large area in northwestern Libya. Its primary speakers are the Ibadite communities around Jadu, Nalut 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.
The dialect of Jadu is described in some detail in Beguinot. Motylinski describes the dialect of Jadu and Nalut as spoken by a student from Yefren.
Nafusi shares several innovations with the Zenati languages, but unlike these other Berber varieties it maintains prefix vowels before open syllables. For example, ufəs "hand" < *afus, rather than Zenati fus. It appears especially closely related to Sokni and Siwi to its east.