† reˈgredientObs.rare—1. [ad. L. regredient-em, pres.pple. of regredī to regrede.] One who retires. 1612W. Parkes Curtaine Dr. (1876) 23 A thousand times more might the pen of his direction discouer, who is the vniversal ingredient and regredient, and Curtaine-drawer of the whole World.