Source : Webster's Revised Unabridged Dictionary (1913)

Nuncupative \Nun*cu"pa*tive\, a. [L. nuncupativus nominal: cf.
   F. nuncupatif.]
   1. Publicly or solemnly declaratory. [Obs.]

   2. Nominal; existing only in name. [Obs.]

   3. Oral; not written.

   {Nuncupative will} or {testament}, a will or testament made
      by word of mouth only, before witnesses, as by a soldier
      or seaman, and depending on oral testimony for proof.
      --Blackstone.