Abbott-Smith Manual Greek Lexicon
ἐνέργεια (G1753)
8 ** ἐνέργεια , -ας, ἡ ( ἐνεργής ), [in LXX: Wi 7:17 , 26 13:4 18:22 , II Mac 3:29 , III Mac 4:21 5:12 , 28 * ;] operative power (as distinct from δύναμις , potential power ), working : of God, Eph 1:19 3:7 4:16 , Phl 3:21 , Col 1:29 2:12 ; of Satan, II Th 2:9 , 11 (cf. M, Th. , l.c.; AR, Eph. , 241 ff.; Cremer, 261).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain