actĭto

I. v. freq. [ago], to act or be employed in, often or much (only of judicial or dramatic action): multas privatas causas, Cic. Brut. 70: tragoedias, id. Rep. 4, 35: so Tac. H. 3, 62; Suet. Galb. 3; cf. Gell. 9, 6.