a. rare. [f. late L. superērogāt- (see SUPEREROGATE) + -IVE.] = SUPEREROGATORY.
1599. Sandys, Europæ Spec., xlii. (1605), P j. Their spirituall treasure of super[er]ogative [ed. 1629 Supererogatorie] workes.
1611. A. Stafford, Niobe, II. 61. A fellow who can iustlie brag of nothing of his owne, but liues vpon the supererogatiue deedes of his Ancestours.
1641. Milton, Animadv., ii. 15. O new and never-heard of Supererogative heighth of wisdome and charity in our Liturgie!