im·mix 
(
ĭ-m
ĭks
)
tr.v. im·mixed,
im·mix·ing,
im·mix·es To commingle; blend.
[Back-formation from Middle English immixte, past participle of immixten, to intermingle with, from Latin immixtus, past participle of immiscēre, to blend : in-, in; see IN-2 + miscēre, to mix; see meik- in the Appendix of Indo-European roots.]
im·mixture (-mĭkschər) n.