Liddell-Scott-Jones

ἐνεργός (energos) operative ^G:A

ἐνεργός, όν,

at work, active, busy, [Refs 5th c.BC+]; ζῷα ἐ., opposed to εἴδωλα ἀκίνητα, [Refs 5th c.BC+]on duty, [Refs 5th c.BC+]; ὅπως ἂν ἐ. ὦσι that they may begin business, [Refs 4th c.BC+]; effective, fit for service, νῆες, στράτευμα, [Refs 5th c.BC+]; ἐ. προσβολή vigorous attack, [Refs 2nd c.BC+]; ἐ. ὑσσοί effective javelins, [Refs 1st c.BC+]; ἐ. ποιεῖσθαι τὴν πορείαν march with rapidity, [Refs 2nd c.BC+]; τόποι (in logical sense) -ότατοι most effective, [Refs 4th c.BC+]; ἡ γεωργία ἐ. ποιεῖ τὴν τροφήν calls into action the nutritive properties (of the soil), [Refs]

__2 actual, opposed to potential, [Refs]
__II of land, productive, opposed to ἀργός, [Refs 5th c.BC+]; simply, tilled, [Refs]; πεδίον πολλαῖς ἐνεργὸν μυριάσι producing enough for multitudes, [Refs 1st c.AD+]in working order, [Refs 1st c.AD+]; also of mines, [Refs 5th c.BC+]; ἐνεργά (i.e. χρήματα) employed capital, which brings in a return, [Refs 5th c.BC+]; τὸ δάνειον ἐ. ποιεῖν to put out to interest, [Refs 4th c.BC+]
__III adverb -γῶς with activity, μαχεῖται [Refs 5th c.BC+]: comparative, [Refs]