Source : Webster's Revised Unabridged Dictionary (1913)

En rapport \En` rap`port"\ [F.]
   In accord, harmony, or sympathy; having a mutual, esp. a
   private, understanding; of a hypnotic subject, being in such
   a mental state as to be especially subject to the influence
   of a particular person or persons.

Rapport \Rap*port"\, n. [F., fr. rapporter to bring again or
   back, to refer; pref. re- re- + apporter to bring, L.
   apporter to bring, L. apportare. Cf. {Report}.]
   Relation; proportion; conformity; correspondence; accord.

         'T is obvious what rapport there is between the
         conceptions and languages in every country. --Sir W.
                                                  Temple.

   {En` rap`port"}[F.], in accord, harmony, or sympathy; having
      a mutual, especially a private, understanding; in
      mesmerism, in that relation of sympathy which permits
      influence or communication.