Source : Webster's Revised Unabridged Dictionary (1913)

Rhapsodize \Rhap"so*dize\, v. t. [imp. & p. p. {Rhapsodized}; p.
   pr. & vb. n. {Rhapsodizing}.]
   To utter as a rhapsody, or in the manner of a rhapsody
   --Sterne.

Rhapsodize \Rhap"so*dize\, v. i.
   To utter rhapsodies. --Jefferson.

Source : WordNet®

rhapsodize
     v 1: recite a rhapsody [syn: {rhapsodise}]
     2: say (something) with great enthusiasm [syn: {rhapsodise}]