I.effective, productive: causa, velut pater filii, Boëth. in Porphyr. 2, p. 58 al.—Esp. as, subst.: effectīva , ae, f. (sc. ars), practical art, productive art: “sed effectivae quoque aliquid simile scriptis orationibus consequetur,” Quint. 2, 18, 5.
effectīvus , a, um, adj. id.,