Source : Webster's Revised Unabridged Dictionary (1913)

Memorize \Mem"o*rize\, v. t. [imp. & p. p. {Memorized}; p. pr. &
   vb. n. {Memorizing}.] [See {Memory}.]
   1. To cause to be remembered; hence, to record. [Obs.]

            They neglect to memorize their conquest. --Spenser.

            They meant to . . . memorize another Golgotha.
                                                  --Shak.

   2. To commit to memory; to learn by heart.