Lewis & Short

inversĭo, ōnis, f. [inverto], an inversion.

  1. I. Verborum, i. e. an ironical inversion of meaning, Cic. de Or. 2, 65. 261.
  2. II. An allegory, transl. of Gr. ἀλληγορία, Quint. 8, 6, 44.
  3. III. A transposition, i. q. ἀναστροφή (as quoque ego for ego quoque), Quint. 1, 5, 40.