derogation

noun

1. a communication that belittles somebody or something

   noun.communication

   Synonyms depreciation disparagement

   Source: WordNet 3.0

2. (law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law

   noun.act

   Examples

   Any derogation of the common law is to be strictly construed.

   Source: WordNet 3.0

3. The act of derogating, partly repealing, or lessening in value; disparagement; detraction; depreciation; -- followed by <i>of</i>, <i>from</i>, or <i>to</i>.

   noun

   Source: webster1913