Source : Webster's Revised Unabridged Dictionary (1913)

Derogate \Der"o*gate\, v. t. [imp. & p. p. {Derogated}; p. pr. &
   vb. n. {Derogating}.] [L. derogatus, p. p. of derogare to
   derogate; de- + rogare to ask, to ask the people about a law.
   See {Rogation}.]
   1. To annul in part; to repeal partly; to restrict; to limit
      the action of; -- said of a law.

            By several contrary customs, . . . many of the civil
            and canon laws are controlled and derogated. --Sir
                                                  M. Hale.

   2. To lessen; to detract from; to disparage; to depreciate;
      -- said of a person or thing. [R.]

            Anything . . . that should derogate, minish, or hurt
            his glory and his name.               --Sir T. More.