Si Collection, Upper Volume Radical: Water (shuǐ) Xu Kangxi strokes: 15 Page 647, Entry 11 Pronounced xu. The name of a river. According to the Comprehensive Records of the World (Guangyuji), in Chenzhou, Chu, there is Xupu County, which contains the Xu Stream; it originates from Fuqu Mountain. It also refers to the bend of a river. According to a poem by Du Fu: Boatmen and fishermen enter the river bends (pu xu). It is also written in a variant form (xu).