Source : Webster's Revised Unabridged Dictionary (1913)

Apprise \Ap*prise"\, v. t. [imp. & p. p. {Apprised}; p. pr. &
   vb. n. {Apprising}.] [F. appris, fem. apprise, p. p.
   apprendre to learn, to teach, to inform. Cf. {Apprehend},
   {Apprentice}.]
   To give notice, verbal or written; to inform; -- followed by
   of; as, we will apprise the general of an intended attack; he
   apprised the commander of what he had done.

Apprise \Ap*prise"\, n.
   Notice; information. [Obs.] --Gower.

Source : WordNet®

apprise
     v 1: give information or notice to; "I advised him that the rent
          was due" [syn: {advise}, {notify}, {give notice}, {send
          word}, {apprize}]
     2: make aware of; "Have the students been apprised of the
        tuition hike?" [syn: {instruct}, {apprize}]
     3: gain in value; "The yen appreciated again!" [syn: {appreciate},
         {apprize}, {revalue}] [ant: {depreciate}]
     4: increase the value of; "The Germans want to appreciate the
        Deutsche Mark" [syn: {appreciate}, {apprize}] [ant: {depreciate}]