The Collaborative International Dictionary of English v.0.48:

Misprize \Mis*prize"\ (m[i^]s*pr[imac]z"), v. t. [OF. mesprisier
   to deprise, F. m['e]priser; pref. amiss, wrong (L. minus less
   + LL. pretium price. See price, Prize, v.]
   To slight or undervalue.
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         O, for those vanished hours, so much misprized!
                                                  --Hillhouse.
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         I do not blame them, madam, nor misprize. --Mrs.
                                                  Browning.
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