nounĭn-effĭcācĭaIN-EFFICACIA☆ KeepMeaninginefficacyLewis & Short 1879ModernAs printed, 1879INEFFICACIALEWIS & SHORTINEFFICACIAĭn-effĭcācĭa, ae, f. inefficax, I. inefficacy (late Lat.): libertatis, Auct. Itin. Alex. M. 94.Read the whole entry