Beagle

bē′gl, n. a small hound tracking by scent, formerly much used in hunting hares, but now superseded by the harrier: a spy: a bailiff: a small kind of shark.—The beagle was often followed by men on foot, hence Foot′-bea′gle . [Ety. unknown. The Fr. bigle is borrowed from English. Dr Murray suggests Fr. bégueule , from béer , to gape, and gueule , throat.]