Wu Collection, Middle Volume Radical: Sickness (bìng) Yu Kangxi stroke count: 14 Page 776, Entry 34 Collected Rhymes (Jiyun) and Collection of Rhymes (Yunhui): Pronounced yu (rising tone). Book of Erya (Erya), Explanation of Teachings: Yu-yu refers to illness. Commentary: It refers to a worthy person who has lost their ambition and suffers from worry and illness. Collected Rhymes (Jiyun): A prisoner who dies from hunger or cold is referred to as yu. History of the Former Han (Qianhan), Annals of Emperor Xuan: Died of yu in prison. Commentary: Su Lin says: It means illness. When prisoners are ill, the legal term for this is called yu. Also, Collected Rhymes (Jiyun): Pronounced yu. Sometimes written as a variant form (yu). The meaning is the same.