Hai Collection, Upper Volume Radical: Horse (mǎ) Entry: 驐 Kangxi stroke count: 22 Page 1445, Entry 10 According to Extensive Rhymes (Guangyun) and Collected Rhymes (Jiyun), the pronunciation is dun. According to Forest of Characters (Zilin), it refers to the removal of the genitals of livestock. In the Elbow-Post Classic (Zhouhou Jing), it is written in a variant form.