adv. colloq. [f. COCKY a. + -LY2.] In a cocky manner.
1861. D. Masson, in Macm. Mag., July., 185/1. Those who go about so cockily with the placard ‘Science of History’ stuck in their hats.
1867. F. Francis, Angling, v. (1880), 180. Sitting lightly and cockily on the water.
