interpositio

Etymology
(perfect passive participial stem of, “I put, place, lay between  among”, “I insert, interpose,  introduce”, “I pledge”)  (suffix forming nouns of action)

Noun

 * 1)  a  between,
 * 2) an
 * 3) an introduction (of persons in )
 * 4) an inserting (of words)
 * 5)   rhetorical
 * 1)   rhetorical