The Collaborative International Dictionary of English v.0.48:

Memorize \Mem"o*rize\, v. t. [imp. & p. p. Memorized; p. pr. &
   vb. n. Memorizing.] [See Memory.]
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   1. To cause to be remembered; hence, to record. [Obs.]
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            They neglect to memorize their conquest. --Spenser.
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            They meant to . . . memorize another Golgotha.
                                                  --Shak.
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   2. To commit to memory; to learn by heart.
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