n. pl. [ Corrupted fr. colewort. ] 1. Young cabbage, used as “greens”; esp. the leaves of a kind of kale (Brassica oleracea acephala) cultivated for that purpose, the collard or colewort. [ Colloq. Southern U. S. ]
Syn. -- collard greens. [ 1913 Webster +PJC ]

2. A kind of kale (Brassica oleracea acephala) cultivated in the southern United States as a vegetable. [ PJC ]