pleat
1. pleat \'ple-t\ vt [ME pleten, fr. pleit, plete plait] 1: FOLD; esp : to arrange in pleats 2: PLAIT - pleat.ed aj 2. pleat n [ME plete] : a fold in cloth made by doubling material over on itself; also : something resembling such a fold
Webster's English Dictionary1. pleat \'ple-t\ vt [ME pleten, fr. pleit, plete plait] 1: FOLD; esp : to arrange in pleats 2: PLAIT - pleat.ed aj 2. pleat n [ME plete] : a fold in cloth made by doubling material over on itself; also : something resembling such a fold