1580s, "that which is mixed;" 1590s, "action of intermixing;" see inter- + mixture (n.).
Entries linking to intermixture
inter-
word-forming element used freely in English, "between, among, during," from Latin inter (prep., adv.) "among, between, betwixt, in the midst of" (also used extensively as a prefix), from PIE *enter "between, among" (source also of Sanskrit antar, Old Persian antar "among, between," Greek entera (plural) "intestines," Old Irish eter, Old Welsh ithr "among, between," Gothic undar, Old English under "under"), a comparative of root *en "in."
A living prefix in English from 15c. and used with Germanic as well as Latinate words. Spelled entre- in French; most words borrowed into English in that form were re-spelled 16c. to conform with Latin except entertain, enterprise. In Latin, spelling shifted to intel- before -l-, hence intelligence, etc.
mixture n.
early 15c., "that which results from mixing;" mid-15c. "act of mixing, state of being mixed;" from Old French misture and directly from Latin mixtura "a mixing," from mixtus (from PIE root *meik- "to mix"). Earlier in both senses was mixtion (late 14c.), from Medieval Latin mixtionem.