Also 6 -our. [In 16th c. conspirour, a. AF. conspirour = OF. conspireur, f. conspirer (having the same form as if directly descended from L. conspīrātor-em).] One who conspires, a conspirator.
1539. Taverner, Gard. Wysed., I. 29 b. A conspirour of my death and a traitour.
1605. Shaks., Macb., IV. i. 91. Take no care: Who chafes, who frets, or where Conspirers are.
1678. Roxb. Ballads, IV. 129. All Conspirers who seek to dethrone A King from his right.