diˈscretionarily,adv. [f. next + -ly2.] In a discretionary way; at discretion. 1683Vind. Case Green-Wax-Fines 3 Officers may discretionarily tax, or add to the Suitors Costs.1794Nelson in Nicolas Disp. (1845) I. 436, I will discretionarily order them a little wine as an encouragement.