Definitions for "Calumniate"
To accuse falsely and maliciously of a crime or offense, or of something disreputable; to slander; to libel.
To propagate evil reports with a design to injure the reputation of another; to make purposely false charges of some offense or crime.
charge falsely or with malicious intent; attack the good name and reputation of someone; "The journalists have defamed me!" "The article in the paper sullied my reputation"