perversĭo: ōnis, f. perverto,I a turning about, inversion; a wresting, perversion, Auct. Her. 4, 32, 44; Tert. adv. Marc. 4, 5.
perversĭō, ōnis, f. (perverto), renversement [de construction] : Her. 4, 44 ; Chalc. Tim. 165