一切經音義 74.68

74.68

跳跟（上狄寮反蒼頡篇跳踊也鄭注尚書大傳謂步足不能相過也說文躍也下古恩反釋名足後曰跟說文從足從艮或作𣥦）。

跳跟 (leaping heels; the first word is [di + liao] fan; the Cangjie pian says: 'Tiao means leaping'; Zheng's commentary on the Shangshu dazhuan states: 'It means steps unable to pass one another'; the Shuowen says: 'To leap'; the second word is [gu + en] fan; the Shiming says: 'The back of the foot is called the gen'; the Shuowen has it composed of 'foot' and gen; it is also written as 𣥦).