v. i. [ imp. & p. p. Calumniated; p. pr. & vb. n. calumniating. ] [ L. calumniatus, p. p. of calumniari. See Calumny, and cf. Challenge, v. t. ] To accuse falsely and maliciously of a crime or offense, or of something disreputable; to slander; to libel. [ 1913 Webster ]

Hatred unto the truth did always falsely report and calumniate all godly men's doings. Strype. [ 1913 Webster ]

Syn. -- To asperse; slander; defame; vilify; traduce; belie; bespatter; blacken; libel. See Asperse. [ 1913 Webster ]

v. i. To propagate evil reports with a design to injure the reputation of another; to make purposely false charges of some offense or crime. [ 1913 Webster ]