derogation,
disparagement,
depreciation (law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law; "any derogation of the common law is to be strictly construed"
malignment,
vilification,
smear a thin tissue or blood sample spread on a glass slide and stained for cytologic examination and diagnosis under a microscope
libel the written statement of a plaintiff explaining the cause of action (the defamation) and any relief he seeks
slander words falsely spoken that damage the reputation of another
name calling,
names verbal abuse; a crude substitute for argument; "sticks and stones may break my bones but names can never hurt me"
calumny -
an abusive attack on a person's character or good name
