The Collaborative International Dictionary of English v.0.48:
Badinage \Ba`di`nage"\, n. [F., fr. badiner to joke, OF. to trifle, be silly, fr. badin silly.] Playful raillery; banter. "He . . . indulged himself only in an elegant badinage." --Warburton. [1913 Webster]WordNet (r) 3.0 (2006):
badinage n 1: frivolous banter