Wu Collection, Upper Volume Radical: Jade (yù) 玎 Kangxi stroke count: 7 Page 727, Entry 07 Tang Rhymes (Tangyun), Collected Rhymes (Jiyun), Dictionary of Rhymes (Yunhui), and Correct Rhymes (Zhengyun) state it is pronounced ding. Explaining Graphs and Analyzing Characters (Shuowen) states it is the sound of jade stones striking one another. Also, Explaining Graphs and Analyzing Characters (Shuowen) notes that Dinggong was the posthumous title of Ji, the son of the Duke of Qi. Dictionary of Rhymes (Yunhui) notes that according to the law of posthumous titles, one who elucidates moral principles but fails to practice them with diligence is given the title Ding. Also, Extensive Rhymes (Guangyun) and Collected Rhymes (Jiyun) and Correct Rhymes (Zhengyun) state it is pronounced cheng. Extensive Rhymes (Guangyun) states it refers to dingling, the clear, crisp sound of jade stones striking one another.