Source : Webster's Revised Unabridged Dictionary (1913)

Jactitation \Jac"ti*ta"tion\, n. [L. jactitare to utter in
   public, from jactare. See {Jactancy}.]
   1. (Law) Vain boasting or assertions repeated to the
      prejudice of another's right; false claim. --Mozley & W.

   2. (Med.) A frequent tossing or moving of the body;
      restlessness, as in delirium. --Dunglison.

   {Jactitation of marriage} (Eng. Eccl. Law), a giving out or
      boasting by a party that he or she is married to another,
      whereby a common reputation of their matrimony may ensue.
      --Blackstone.

Source : WordNet®

jactitation
     n 1: speaking of yourself in superlatives [syn: {boast}, {boasting},
           {self-praise}]
     2: (law) a false boast that can harm others; especially a false
        claim to be married to someone (formerly actionable at
        law)
     3: (pathology) extremely restless tossing and twitching usually
        by a person with a severe illness [syn: {jactation}]