I.v. dep., to work with or together, combine, unite (late Lat.): “praedicaverunt ubique, Domino coöperante,” Vulg. Marc. 16, 20; Cassiod. Hist. Eccl. 9, 19.—
II. Transf., of things: “quoniam fides coöperabatur operibus ejus,” Vulg. Jac. 2, 22: “diligentibus Deum omnia cooperantur in bonum,” id. Rom. 8, 28.