Obs. rare–1. [f. as prec. + -NESS.] The quality of being effectuous; efficacy.
1686. Goad, Celest. Bodies, I. xii. 48. The effectuousness of the Semisextile … must be referred rather to that efficacy, which … is not yet extinct in the Oblique Line.
Obs. rare–1. [f. as prec. + -NESS.] The quality of being effectuous; efficacy.
1686. Goad, Celest. Bodies, I. xii. 48. The effectuousness of the Semisextile … must be referred rather to that efficacy, which … is not yet extinct in the Oblique Line.
