cosiness|ˈkəʊzɪnɪs| Also cozi-. [f. cosy a. + -ness.] The quality or state of being cosy. 1834De Quincey Autobiog.Sk., DublinWks. I. 236 Old rambling houses..displaying, in the dwelling-rooms, comfort and ‘cosiness’.1882Athenæum 2 Dec. 741/1 Palmer said he loved cosiness, as a cat does.