calumniate
/kə-ˈləm-nē-ˌāt/
verb
to utter maliciously false statements, charges, or imputations about
to injure the reputation of by calumny
/kə-ˈləm-nē-ˌāt/
to utter maliciously false statements, charges, or imputations about
to injure the reputation of by calumny