IPA: /ˈfɛt.lɒk/
KK: /ˈfɛtˌlɒk/
A part of a horse's leg located just above the hoof, often covered with hair.
The horse had a beautiful fetlock with long, flowing hair.
Fetlock → The word originates from Middle English *fetloche*, which is derived from the Old English *fēte* (meaning foot) and *loca* (meaning lock or tuft). The term refers to the tuft of hair found on the back of a horse's leg, near the fetlock joint, which is the joint between the cannon bone and the pastern.
Think of the 'foot' ('fēte') of a horse and the 'tuft' ('loca') of hair that grows there — that's why fetlock refers to the tuft of hair on a horse's leg.