Zi Collection, Page Position: Upper, Radical: Ox (niú), Page 150, Entry 01 Gloss: The character is pronounced wan (falling tone). It refers to the kneecap. Citation: Zhang Jinzhao cut off his left kneecap and built a thatched hut beside the grave to observe mourning rites — "Book of Tang" (Tangshu), Biography of Filial and Fraternal (Xiaoyou)