interposition (n.)

late 14c., from Old French interposicion "interpolation, intercalation; suspension, break" (12c.), from Latin interpositionem (nominative interpositio) "an insertion," noun of action from past participle stem of interponere "to put between, place among; put forward," from inter "between" (see inter-) + ponere "to put, place" (past participle positus; see position (n.)).