[f. prec. + -ER1: cf. Fr. comploteur (16th c.).] One who joins in a plot; a fellow-plotter, conspirator.
1592. Warner, Alb. Eng., VII. xxxv. (1612), 168. He By his Complottors was pretenste Duke Clarence sonne to be.
1630. Wadsworth, Sp. Pilgr., iii. 26. Father Gerat, a complotter of the Gunpowder Treason.
a. 1718. Rowe, Jane Shore, IV. i. 44. Thou art The Patron and Complotter of her Mischiefs.
1890. Harpers Mag., June, 48/1. There is recognized dishonor among small complotters.