Source : Webster's Revised Unabridged Dictionary (1913)

Nee \Nee\, p. p., fem. [F., fr. L. nata, fem. of natus, p. p. of
   nasci to be born. See {Nation}.]
   Born; -- a term sometimes used in introducing the name of the
   family to which a married woman belongs by birth; as, Madame
   de Sta["e]l, n['e]e Necker.

Source : WordNet®

nee
     adj : (meaning literally `born') used to indicate the maiden or
           family name of a married woman; "Hillary Clinton nee
           Rodham"