Si Collection, Upper Volume Radical: Water (shuǐ) Lai Kangxi strokes: 12 Page 632, Entry 13 Pronounced lai Name of a river. In the Explaining Graphs and Analyzing Characters (Shuowen Jiezi), it is noted as a river rising in Guangchang, Northern Territory, flowing east into the Yellow River. In the Rites of Zhou (Zhouli), section on the Ministry of Summer, Bureau of Regional Administration, it is written that for the province of Bingzhou, its water features are the Lai and the Yi.