Sui (Shuǐyǔ 水語) is the language of the Sui people (Shuǐzú 水族) who reside in south China’s Guìzhōu and Guǎngxī Provinces, with a total population of over 400,000, according to the 2000 government census. Over 60% of Sui speakers are found in Guìzhōu, particularly in Sāndū Shuǐ Autonomous County 三都水族自治州 of G…