commixing--prophetes.ai

commixing, vbl. n.
  (kəˈmɪksɪŋ)
  [f. as prec. + -ing¹.]
  The action of the vb. commix.

1610 P. Barrough Meth. Physick iii. v. (1639) 106 The commixing of those things.

Oxford English Dictionary