Chou Collection, Upper Volume Radical: Mouth (kǒu) Kangxi strokes: 14 Page 204, Entry 27 Guangyun: Pronounced su (fourth tone). Jiyun, Yunhui, Zhengyun: Pronounced xian (first tone), xi (fourth tone); the pronunciation is identical to the character xiao. Yupian: Defined as coughing. Rites of Zhou (Zhouli), Office of Heaven, Physicians of Diseases: Records that in winter there are diseases of coughing and wheezing. Shiwen: Pronounced xi (first tone), dou (fourth tone); also written in a variant form (shuo). Guangyun: Originally written as the character sou. Also Jiyun: Pronounced suo (third tone), jiu (fourth tone); the pronunciation is identical to the character shou. Originally written as the character shu, meaning to rinse the mouth. Records of the Grand Historian (Shiji), Biography of Physician Cang: Records that one should rinse the mouth with three liters of water daily. Also Wuyin Jiyun: Pronounced sang (first tone), gu (fourth tone); the pronunciation is identical to the character su. Means to suck. Also Guangyun: Pronounced suo (third tone), jiao (fourth tone); Jiyun: Pronounced se (fourth tone), jiao (fourth tone); the pronunciation is identical to the character shuo. Guangyun: Originally written as the character shuo, meaning to suck with the mouth. Jiyun: Defined as to suck. Identical to the character suo.