Source : Webster's Revised Unabridged Dictionary (1913)

Dignify \Dig"ni*fy\, v. t. [imp. & p. p. {Dignified}; p. pr. &
   vb. n. {Dignifying}.] [OF. dignifier, fr. LL. d??nificare; L.
   dignus worthy + ficare (in comp.), facere to make. See
   {Deign}, and {Fact}.]
   To invest with dignity or honor; to make illustrious; to give
   distinction to; to exalt in rank; to honor.

         Your worth will dignity our feast.       --B. Jonson.

   Syn: To exalt; elevate; prefer; advance; honor; illustrate;
        adorn; ennoble.

Source : WordNet®

dignifying
     adj : investing with dignity or honor; "the dignifying effect of
           his presence"; "the ennobling influence of cultural
           surroundings" [syn: {ennobling}]