Merriam-Webster Collegiate Dictionary - pigeon

 I. noun  Etymology: Middle English, from Anglo-French pygoun, pijun, from Late Latin pipion-, pipio young bird, from Latin pipire to chirp  Date: 14th century  1. any of a widely distributed family (Columbidae, order Columbiformes) of birds with a stout body, rather short legs, and smooth and compact plumage; especially a member of any of numerous varieties of the rock dove that exist in domestication and in the feral state in cities and towns throughout most of the world  2. a young woman  3. an easy mark ; dupe  4. clay ~  II. noun  Etymology: alteration of pidgin  Date: 1826 an object of special concern ; accepted business or interest tennis was not his ~