Xu Collection, Middle Volume. Radical: Rain (yǔ). Stroke count: 15. Page 1374, Entry 03. Pronounced mu. According to the Explaining Graphs and Analyzing Characters (Shuowen Jiezi), it refers to a light rain, composed of the radical for rain and a phonetic component signifying cleansing. According to the Erya, a dictionary of definitions (Erya), a small rain is called mai-mu. In the Book of Odes (Shijing), it is written: increase it with a light drizzling rain. See the detailed entry for the character mai below for further information.