versātĭo, ōnis, f. [verso], a turning round.
I Lit.: machinarum, Vitr. 10, 1; 10, 6; 10, 8; 10, 10; 10, 14: oculi, Plin. 8, 33, 51, § 121.—
II Trop., a changing , alteration , mutation : rerum sursum ac deorsum euntium, Sen. Tranq. 11, 10.