ἐνεργήτρια
From LSJ
ἀρκετὸν τῇ ἡμέρᾳ ἡ κακία αὐτῆς → sufficient unto the day is the evil thereof, each day has enough trouble of its own, there is no need to add to the troubles each day brings (Matthew 6:34)
English (LSJ)
ἡ, A effectrix, Gloss.
Spanish (DGE)
-ας, ἡ
causante, que realiza ἐ.· effectrix, Gloss.2.298.