Ca·lum·ni·ate v. i. [imp. & p. p. Calumniated; p. pr. & vb. n. calumniating.] To accuse falsely and maliciously of a crime or offense, or of something disreputable; to slander; to libel.
Hatred unto the truth did always falsely report and calumniate all godly men's doings. --Strype.
Syn. -- To asperse; slander; defame; vilify; traduce; belie; bespatter; blacken; libel. See Asperse.