Lewis & Short

interrŏgātĭo, ōnis, f. [interrogo], a questioning, inquiry, examination, interrogation (class.).

  1. I. In gen.: sententia per interrogationem, Quint. 8, 5, 5: instare interrogatione, id. 6, 3, 38: testium, Tac. A. 6, 47: insidiosa, Plin. Ep. 1, 5, 7: litteris inclusae, Dig. 48, 3, 6, § 1.
    Absol., Cic. Fam. 1, 9, 7; Quint. 5, 7, 3: verbis obligatio fit ex interrogatione et responsione, Gai. Inst. 2, 92.
  2. II. In partic.
    1. A. As rhet. fig., Quint. 9, 2, 15; 9, 3, 98.
    2. B. A syllogism: recte genus hoc interrogationis ignavum ac iners nominatum est, Cic. Fat. 13; Sen. Ep. 87 med.