interpellātĭō, ōnis, f. (interpello),

¶ 1 interruption, interpellation : Cic. Part. 30 ; de Or. 2, 39 ||
interruption, obstacle : Cic. Fam. 6, 18, 5

¶ 2 citation, sommation : Ulp. Dig. 5, 1, 23.