effective
From LSJ
English > Greek (Woodhouse)
adj.
Hitting the mark: P. επιτυχής. Accomplish its object: P. and V. δραστήριος, V. πρακτήριος. Fit for action: P. ἐνεργός, δυνατός. Authoritative: P. and V. κύριος.
Latin > English
effective ADV :: effectively; productively