ca·lum·ni·ate [ kə lúmnee àyt ](past and past participleca·lum·ni·at·ed, present participleca·lum·ni·at·ing, 3rd person present singularca·lum·ni·ates)
transitive verb
Definition:
falsely accuse: to accuse somebody falsely, or slander somebody
(
formal
)
[Mid-16th century. < Latin calumniat-, past participle of calumniare< calumnia (see calumny)]