Chen Collection, Middle Volume Radical: Tree (mù) Kangxi strokes: 13 Page 538, Entry 23 Pronounced bi. According to the Explaining Graphs and Analyzing Characters (Shuowen Jiezi), it refers to wood that is constrained or bound. In the Book of Odes (Shijing), it is used in the phrase referring to the restrainer and yoke. Master Xu notes that the restrainer and yoke are used to prevent cattle from goring people, and therefore a piece of wood is placed across the tips of the cattle horns. Also, according to the commentary on the Rites of Zhou (Zhouli), an earth-mounded building is called a restrainer chamber, where live fish are kept and dried using roasted rice and wheat flour. Pronounced fang. Pronounced fu. The meaning is the same. It also refers to a container for holding arrows. In the Book of Etiquette and Ceremonial (Yili), it is noted that the container is set up on the south side of the courtyard. The commentary explains that the container is like the edge of cloth or silk, used to neatly arrange arrow shafts and arrows. The sub-commentary explains that the name derives from the concept of neat edges; it is the length of an arrow shaft, three inches wide, one and a half inches thick, featuring dragon heads and intertwined snake patterns in the center. Pronounced bi. The meaning is the same.