† deˈceptiously,adv.Obs. [f.prec. + -ly2.] In a way characterized by deception; in such a way as to deceive. 1797W. Taylor in Monthly Rev. XXIII. 582 She then appoints him deceptiously in the bath house.1817Bentham Plan Parl. Reform cxv, Circumstantially but deceptiously evidentiary.