Source : Webster's Revised Unabridged Dictionary (1913)

Mislay \Mis*lay"\, v. t. [imp. & p. p. {Mislaid}; p. pr. & vb.
   n. {Mislaying}.]
   1. To lay in a wrong place; to ascribe to a wrong source.

            The fault is generally mislaid upon nature. --Locke.

   2. To lay in a place not recollected; to lose.

            The . . . charter, indeed, was unfortunately
            mislaid: and the prayer of their petition was to
            obtain one of like import in its stead. --Hallam.

Source : WordNet®

mislay
     v : place (something) where one cannot find it again; "I
         misplaced my eyeglasses" [syn: {misplace}, {lose}]
     [also: {mislaid}]