[f. TRAITOR sb. + -ISM.] The practice or principles of a traitor.
1591. Troub. Raigne K. John, II. (1611), I ij b. But wher fel traitorisme hath residence, There wants no words to set despight on worke.
1661. K. W., Conf. Charac. Gd. old Cause (1860), 62. The … most notorious cause of innovation and traitorisme.
a. 1734. North, Exam., II. v. (1740), 323. The Loyal Clergy of the Church of England at that time [c. 1680] … are charged with Traitorism of their Principles.
1888. Times (weekly ed.), 29 June, 8/1. There was no traitorism in the ranks.
1898. Columbus (Ohio) Dispatch, 5 Jan., 7/1. Charges of conspiracy and traitorism were freely made.
