The Whippet (also English Whippet or Snap Dog) is a dog breed of medium size. They are a sighthound breed that originated in England, where they descended from Greyhounds. Whippets today still strongly resemble a smaller Greyhound. Part of the Hound group, Whippets have relatively few health problems other than arrhythmia. Whippets also participate in dog sports such as lure coursing, agility, and flyball. The name is derived from an early 17th-century word, now obsolete, meaning 'to move briskly'. Whippets were commonly known as 'snap dogs' for their tendency to 'snap up' nearby prey. In the picture by Jean-Baptiste Oudry (1686–1755) of two dogs presented to Louis XV, they are either Whippets or small Greyhounds, but are probably related to an early form of Whippet. Oudry also painted a second painting of Misse with a different, non-sighthound dog. There is a 1758 painting by Pompeo Batoni entitled Portrait of Charles Compton, 7th Earl of Northampton which features a similar whippet-like dog. 