Source : Webster's Revised Unabridged Dictionary (1913)

Titivate \Tit"i*vate\, Tittivate \Tit"ti*vate\, v. t. & i. [imp.
   & p. p. {Titivated}; p. pr. & vb. n. {Titivating}.] [Formed
   from an uncertain source, in imitation of words in -ate fr.
   L.]
   To dress or smarten up; to spruce. -- {Tit`i*va"tion},
   {Tit`ti*va"tion}, n. [Both Humorous]

         ``Come here, an' let me titivate you.'' He sat down
         beside her, and submitted to be dusted.
                                                  --Quiller-Couch.