\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.