Nasu language
language

The Nasu language, also known as the Eastern Yi language or Naisu, Luquan Yi, Wuding Yi, Guizhou Yi, Weining Yi, Guangxi Yi or Longlin Yi, is a Loloish language spoken by the Yi people of China. Nasu and Wusa are two of six Yi languages recognized by the Government of China. Unlike most written Yi languages, Nasu uses the Pollard script. A distinct form of the Yi script was traditionally used for Wusa, though few can still read it.
The Nasu language is also known as the Black Yi language, but this name is no longer used.
Names
According to the Guizhou Ethnic Gazetteer (2002), Yi autonyms include Nasu 哪苏, Tusu 兔苏, Lagou 腊勾, Guo 果, and so forth.
Most of Yi people of the Luquan area do not have the autonym Luoluo and Nasu (transliterated into Chinese as 纳苏) means "black", hence the Black Yi (黑彝 Hei Yi), though Black Yi is an aristocratic caste distinction among the Yi People, and Black Yi Script (Heiyiwen) was a Latin script for Yi introduced by missionaries.
Classification
Chen (1985)
Chen, et al. (1985:108) recognizes 3 major varieties of Eastern Yi (i.e., Nasu) that are spoken in Yunnan and Guizhou provinces, namely Dianqian 滇黔 (Yunnan-Guizhou), Pan 盘县 (Pan County of Guizhou), and Diandongbei 滇东北 (Northeastern Yunnan). Autonyms include no55su55 (alternatively nɤ55su13), na33su33 pʰo55 (including na33so33 pʰo55, nɤ55su33 pʰu55, and ni55su33 pʰu55), nɒ55 pʰo55, and ko33 pʰo55.
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