The Collaborative International Dictionary of English v.0.48:

Intermix \In`ter*mix"\, v. t.
   To mix together; to intermingle.
   [1913 Webster]

         In yonder spring of roses, intermixed
         With myrtle, find what to redress till noon. --Milton.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Intermix \In`ter*mix"\, v. i.
   To be mixed together; to be intermingled.
   [1913 Webster]

WordNet (r) 3.0 (2006):

intermix
    v 1: combine into one; "blend the nuts and raisins together";
         "he blends in with the crowd"; "We don't intermingle much"
         [syn: blend, intermix, immingle, intermingle]