Source : Webster's Revised Unabridged Dictionary (1913)

Disassociate \Dis`as*so"ci*ate\, v. t. [imp. & p. p.
   {Disassociated}; p. pr. & vb. n. {Disassociating}.]
   To disconnect from things associated; to disunite; to
   dissociate. --Florio.