Nuosu or Nosu, also known as Northern Yi, Liangshan Yi, and Sichuan Yi, is the prestige language of the Yi people; it has been chosen by the Chinese government as the standard Yi language and, as such, is the only one taught in schools, both in its oral and written forms. It was spoken by two million people and was increasing as of ; 60% were monolingual. Nuosu is the native Nuosu/Yi name for their own language and is not used in Mandarin Chinese; although it may sometimes be spelled out for pronunciation, the Chinese characters for nuòsū have no meaning. The occasional terms 'Black Yi' and 'White Yi' are castes of the Nuosu people, not dialects. Nuosu is one of several often mutually unintelligible varieties known as Yi, Lolo, Moso, or Noso; the six Yi languages recognized by the Chinese government hold only 25% to 50% of their vocabulary in common. They share a common traditional writing system, though this is used for shamanism rather than daily accounting.
Dialects of Nuosu
Lama (2012)
Lama gives the following classification for Nuosu dialects.
Mianning County: Jionglong 迥龙, Lugu 泸沽, Hebian 河边; Manshuiwan 漫水湾
Xichang: Lizhou 礼州, Yuehua 月华
Xide County: Mianshan 冕山镇, Lake 拉克
Bradley (1997)
According to Bradley, there are 3 main dialects of Nosu, of which the Southeastern one is most divergent.
Northern
*Tianba 田坝 Northwestern
*Yinuo 义诺 Northeastern
Central
Southeastern
*Sondi
*Adur
Chen (2010)
Chen lists the following dialects of Nosu. Also listed are the counties where each respective dialect is spoken.
Nosu 诺苏方言
*Senza, Shèngzhà 圣乍次方言
**Senza, Shèngzhà 圣乍 : 1,200,000 speakers primarily in Xide, Yuexi, Ganluo, Jinyang, Puge, Leibo, Xichang, Dechang, Mianning, Yanyuan, Yanbian, Muli, Shimian, Jiulong, and Luding; also in Huaping, Yongsheng, Ninglang, Lijiang, Jianchuan, Yongshan, and Qiaojia
**Yino, Yìnuò 义诺 : 600,000 speakers primarily in Meigu, Mabian, Leibo, and Ebian, Ganluo; also in Yuexi, Zhaojue, and Jinyang
**Lidim, Tiánbà 田坝 : 100,000 speakers primarily in Ganluo, Yuexi, and Ebian; also in Hanyuan
*Sodi, Suǒdì 所地次方言 : 600,000 speakers primarily in Tuoxian, Huili, Huidong, Ningnan, Miyi, Dechang, and Puge
Writing system
Classic Yi is a syllabic logographic system of 8,000-10,000 glyphs. Although similar to Chinese characters in function, the glyphs are independent in form, with little to suggest a direct relation. The Modern Yi script is a standardized syllabary derived from the classic script in 1974 by the local government of China. It was made the official script of the Yi languages in 1980. There are 756 basic glyphs based on the Liangshan dialect, plus 63 for syllables only found in Chinese borrowings. In 1958 the Chinese government had introduced a Roman-based alphabet based on the romanized script of Gladstone Porteous of Sayingpan. , Sichuan, China, showing Modern Yi, Chinese and English text.
Phonology
The written equivalents of the phonemes listed here are "Yi Pinyin". For information about the actual script used see the section above entitled Writing System.
Consonants
Vowels
Nuosu has five pairs of phonemic vowels, contrasting in a feature Eatough calls loose throat vs. tight throat. Underlining is used as an ad-hoc symbol for tight throat; phonetically, these vowels are laryngealized and/or show a retracted tongue root. Loose vs. tight throat is the only distinction in the two pairs of syllabic consonants, but in the vocoids it is reinforced by a height difference. The syllabic consonants y u are essentially the usual Sinological vowels, so y can be identified with the vowel of the Mandarin 四 sì "four", but they have diverse realizations. Y completely assimilates to a preceding coronal except in voice, e.g. ꑮ xyp "to marry", and are after a labial nasal, e.g. ꂪꌦ hmy sy "cloth". U assimilates similarly after laterals, retaining its rounding, e.g. ꆭ hlu "to stir-fry", and is after a labial nasal, e.g. ꂥ hmu "mushroom"; moreover it induces a labially trilled release of preceding labial or alveolar stops, e.g. ꅥ ndup "to hit". The tight-throat phone occurs as the realization of in the high tone. That it is phonemically loose-throat is shown by its behaviour in tightness harmony in compound words.
Tones
high – written -t
high-mid or mid falling – written -x
mid – unmarked
low falling – written -p
The high-mid tone is only marginally contrastive. Its two main sources are from tone sandhi rules, as the outcome of a mid tone before another mid tone, and the outcome of a low-falling tone after a mid tone. However, these changes do not occur in all compounds where they might: for instance ꊈ wo "bear" + ꃀ mop "mother" regularly forms ꊈꂾ wo mox "female bear", but ꃤ vi "jackal" + ꃀ mop "mother" forms ꃤꃀ vi mop "female jackal" without sandhi. The syntax creates other contrasts: tone sandhi applies across the boundary between object and verb, so is present in SOV clauses like ꃅꏸꇐꄜꎷ mu jy lu ti shex "Mujy looks for Luti", but is absent in OSV clauses like ꃅꏸꇐꄜꎹ mu jy lu ti shep "Luti looks for Mujy". A few words, like ꑞ xix "what?", have underlying high-mid tone.
Vocabulary and grammar
Nuosu is an analytic language, the basic word order is Subject–object–verb. Vocabularies of Nuosu can be divided into content words and function words. Among content words, nouns in Nuosu do not perform inflections for grammatical gender, number, and cases, classifiers are required when the noun is being counted; verbs do not perform conjugations for its persons and tenses; adjectives are usually placed after the word being fixed with a structural particle and do not perform inflections for comparison. Function words, especially grammatical particles, have a significant role in terms of sentence constructions in Nuosu. Nuosu does not have article words, but conjunctions and postposition words are used.
Numbers
Classifiers are required when numbers are used for fixing nouns.