Chou Collection, Middle Volume. Radical: Scholar (shì). Kangxi stroke count: 12. Page 243, Entry 17. Broad Rhymes (Guangyun): Pronounced xi. Collected Rhymes (Jiyun), Rhyme Meetings (Yunhui), Correct Rhymes (Zhengyun): Pronounced xi, same reading as the character for fine. A daughter's husband is called a xu; a wife may also address her husband as xu. Zuo Tradition (Zuozhuan), Year 8 of Duke Wen: The Marquis of Jin sent Xie Yang to return the fields of Kuang and Qi to the State of Wei, and to restore the fief of Gongxu Chi. Note: Gongxu refers to the son-in-law of the ruler of the State of Jin. Chi is his given name. Approaching Elegance (Erya), Explanation of Kinship: In the region east of the Yangtze River, those from the same school are called liao xu; two sons-in-law address each other as ya xu. Furthermore, one who is poor and marries into the wife's family is called a zhui xu (son-in-law living in his wife's home). Records of the Grand Historian (Shiji), Biographies of Jesters: Chunyu Kun was a zhui xu of the State of Qi. Also, Meng Kang stated: In the western regions, losing a son-in-law is referred to as qiu xu. Qiu means empty. Also, Gongxu is the name of a location in the State of Chu. Zuo Tradition (Zuozhuan), Year 2 of Duke Ding: Battle took place at the stream of Gongxu. Also, the name of a township. Xu Township is in Chenggu County, Hanzhong. Chronicles of Huayang (Huayang Guozhi): On the day Tang Gongfang attained immortality, his son-in-law had not yet returned; they had arranged to reside at this location, so it was named Xu Township and the water was named Xu River. Analytical Dictionary of Characters (Shuowen Jiezi): The character form is derived from Scholar (shi), with Xu (xu) providing the sound. Some versions are written with Woman (nü) as the radical, resulting in the character xu, with the meaning remaining the same. Xu remarked: Xu implies having talent and wisdom. It also denotes an elder; a son-in-law is an elder relied upon by a woman. Also written in the variant forms of xu and xu.