Source : Webster's Revised Unabridged Dictionary (1913)

Speechify \Speech"i*fy\, v. i. [imp. & p. p. {Speechified}; p.
   pr. & vb. n. {Speechifying}.] [Speech + -fy.]
   To make a speech; to harangue. [Used derisively or
   humorously.]

Source : WordNet®

speechify
     v : make speeches; hold forth, or harangue with a certain degree
         of formality; "These ministers speechify on every
         occasion"
     [also: {speechified}]