The Collaborative International Dictionary of English v.0.48:

Benedict \Ben"e*dict\, Benedick \Ben"e*dick\, n. [From Benedick,
   one of the characters in Shakespeare's play of "Much Ado
   about Nothing."]
   A married man, or a man newly married.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Benedict \Ben"e*dict\, a. [L. benedictus, p. p. of benedicere to
   bless. See Benison, and cf. Bennet.]
   Having mild and salubrious qualities. [Obs.] --Bacon.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Benedict
    n 1: United States anthropologist (1887-1948) [syn: Benedict,
         Ruth Benedict, Ruth Fulton]
    2: Italian monk who founded the Benedictine order about 540
       (480-547) [syn: Benedict, Saint Benedict, St. Benedict]
    3: a newly married man (especially one who has long been a
       bachelor) [syn: benedick, benedict]