Source : Webster's Revised Unabridged Dictionary (1913)

Spouse \Spouse\, v. t. [See {Espouse}, and Spouse, n.]
   To wed; to espouse. [Obs.]

         This markis hath her spoused with a ring. --Chaucer.

         Though spoused, yet wanting wedlock's solemnize.
                                                  --Spenser.

         She was found again, and spoused to Marinell.
                                                  --Spenser.

Spouse \Spouse\, n. [OF. espous, espos, fem. espouse, F.
   ['e]poux, ['e]pouse, fr. L. sponsus, sponsa, prop. p. p. of
   spondere, sponsum, to promise solemnly, to engage one's self.
   Cf. {Despond}, {Espouse}, {respond}, {Sponsor}.]
   1. A man or woman engaged or joined in wedlock; a married
      person, husband or wife.

            At last such grace I found, and means I wrought,
            That that lady to my spouse had won.  --Spenser.

   2. A married man, in distinct from a spousess or married
      woman; a bridegroom or husband. [Obs.]

            At which marriage was [were] no person present but
            the spouse, the spousess, the Duchess of Bedford her
            mother, the priest, two gentlewomen, and a young
            man.                                  --Fabyan.

Source : WordNet®

spouse
     n : a person's partner in marriage [syn: {partner}, {married
         person}, {mate}, {better half}]