You Collection, Middle Volume Radical: Foot (zú) Kangxi Strokes: 13 Page 1224, Entry 14 Pronounced gen Shuowen Jiezi (Explanation of Simple and Compound Characters): The heel of the foot. Sometimes written with the radical stop (zhǐ). Shiming (Explanation of Names): The back of the foot is called the heel; it is located at the lower side touching the ground, and the whole body relies on it, resembling the root of a plant. History of the Later Han (Hou Hanshu): Standing on the brink of a precipice and stopping.