Source : Webster's Revised Unabridged Dictionary (1913)

Misappropriate \Mis`ap*pro"pri*ate\, v. t.
   To appropriate wrongly; to use for a wrong purpose.

Source : WordNet®

misappropriate
     v : appropriate (as property entrusted to one's care)
         fraudulently to one's own use; "The accountant embezzled
         thousands of dollars while working for the wealthy
         family" [syn: {embezzle}, {defalcate}, {peculate}, {malversate}]