Effectio, onis, f. g. Verb. Cic. Effectio artis. The making or bringing to effect.
Lewis and Short: Latin dictionary
effectĭo, ōnis, f. [efficio] (only in the philos. lang. of Cicero). I.A doing, performing, effecting, practising: artis, Cic. Fin. 3, 7, 24: recta (a transl. of kato/rqwsis), id. ib. 3, 14, 45.— II. I. q. causa efficiens, the producing or efficient cause, Cic. Ac. 1, 2, 6.