The Collaborative International Dictionary of English v.0.48:

Humanize \Hu"man*ize\, v. t. [imp. & p. p. Humanized; p. pr. &
   vb. n. Humanizing.] [Cf. F. humaniser.]
   1. To render human or humane; to soften; to make gentle by
      overcoming cruel dispositions and rude habits; to refine
      or civilize. [Also spelled humanise.]
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            Was it the business of magic to humanize our natures
            with compassion?                      --Addison.
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   2. To give a human character or expression to. "Humanized
      divinities." --Caird.
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   3. (Med.) To convert into something human or belonging to
      man; as, to humanize vaccine lymph.
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