The Collaborative International Dictionary of English v.0.48:

Nuncupate \Nun"cu*pate\, v. t. [L. nuncupatus, p. p. of
   nuncupare to nuncupate, prob. fr. nomen name + capere to
   take.]
   1. To declare publicly or solemnly; to proclaim formally.
      [Obs.]
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            In whose presence did St. Peter nuncupate it?
                                                  --Barrow.
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   2. To dedicate by declaration; to inscribe; as, to nuncupate
      a book. [Obs.] --Evelyn.
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