collocation (n.)

mid-15c., collocacioun, "a ligament," from Old French and directly from Latin collocationem (nominative collocatio), noun of action from past participle stem of collocare "place together, set in place" (see collocate). Meaning "act of placing together; state of being placed or ordered with something else" is from c. 1600. Linguistics sense is attested from 1940.