Chou Collection, Upper Volume Radical: Mouth (kǒu) Character: Yan Kangxi strokes: 17 Page 211, Entry 41 Collected Rhymes (Jiyun): Pronounced ya. Book of Wei (Weishu): In the second year of the Shengui era, countries such as Tudahun, Dangchang, and Yanda sent envoys to bring tribute.