1) Amalgamate 2) Blend 3) Combine into one 4) Commix 5) Immingle 6) Intermingle 7) Mingle 8) To intermingle or blend 9) To mix together 10) Unify Found on https://www.crosswordclues.com/clue/intermix
In`ter·mix' transitive verb To mix together; to intermingle. « In yonder spring of roses, intermixed With myrtle, find what to redress till noon.» Milton. Found on http://www.encyclo.co.uk/webster/I/81