Source : Webster's Revised Unabridged Dictionary (1913)

Amplify \Am"pli*fy\, v. t. [imp. & p. p. {Amplified}; p. pr. &
   vb. n. {Amplifying}.] [F. amplifier, L. amplificare. See
   {Ample}, {-fy}.]
   1. To render larger, more extended, or more intense, and the
      like; -- used especially of telescopes, microscopes, etc.

   2. (Rhet.) To enlarge by addition or discussion; to treat
      copiously by adding particulars, illustrations, etc.; to
      expand; to make much of.

            Troilus and Cressida was written by a Lombard
            author, but much amplified by our English
            translator.                           --Dryden.