to roll, as the body of an animal; to tumble about, especially in anything foul or defiling; to wallow.-to rise and fall, as waves; to tumble over, as billows.-to wither; to wilt.-of, pertaining to, or designating, the most heavily weighted race in a meeting; as, a welter race; the welter stakes.-that in which any person or thing welters, or wallows; filth; mire; slough.-a rising or falling, as of waves; as, the welter of the billows; the welter of a tempest.