effĭcĭentĭa — Lewis & Short
effĭcĭentĭa, ae, f.efficio,
I efficient power, efficiency, influence (rare;
mostly in philos. lang.),Cic. N. D. 2, 37, 95; id. Fat. 9, 19:
spiritalis, Hil. in Psa. 131, 24: inenarrabilis,id. Trin. 3, 18; Lact. Opif. D. 19, 7.