fet·lock
noun/ˈfetlɒk/
/ˈfetlɑːk/
- the part at the back of a horse’s leg, just above its hoof, where long hair grows
球节（马蹄上面有丛毛的部分） Word OriginMiddle English: ultimately of Germanic origin; related to German Fessel ‘fetlock’, also to foot.