ringbone/ˈrɪŋˌbəʊn/EtymologyInherited from Middle English ryngbon; equivalent to ring + bone.nounA type of osteoarthritis affecting any of several bones (particularly the coffin joint or pastern) of a horse's leg or foot, marked by bone growth.““As an inventor,” Bob Mason suggested, “you're a howling success at shooting craps ! If I were as free of spavins, ringbone, saddle-galls, and splints as you are, I'd have that nanny-goat in here, hog-tie her, flop her and let the boy help himself. […]””