Word Summary
energeō: to be at work, to work, to do
Original Word: ἐνεργέω
Transliteration: energeō
Phonetic Spelling: (en-erg-eh'-o)
Part of Speech: Verb
Short Definition: to be at work, to work, to do
Meaning: to be at work, to work, to do
Strong's Concordance
do, be effectual, be mighty in.

From energes; to be active, efficient -- do, (be) effectual (fervent), be mighty in, shew forth self, work (effectually in).

see GREEK energes

Thayer's Greek Lexicon
STRONGS NT 1754: ἐνεργέω

ἐνεργέω, ἐνέργω; 1 aorist ἐνήργησα; perfect ἐνήργηκα (Ephesians 1:20 L T WH text Tr marginal reading); (ἐνεργός (see ἐνεργής));

1. intransitive, to be operative, be at work, put forth power: followed by ἐν with the dative of person, Matthew 14:2; Mark 6:14; Ephesians 2:2; followed by the dative of advantage (dative commodi; (cf. Lightfoot on Galatians, as below)), to work for one, aid one, εἰς τί, unto (the accomplishing of) something (Winer's Grammar, 397 (371)): εἰς ἀποστολήν, unto the assumption (or discharge) of the apostolic office; εἰς τά ἔθνη, equivalent to εἰς ἀποστολήν (cf. Winers Grammar, § 66, 2 d.; Buttmann, § 147, 8) τῶν ἐθνῶν, Galatians 2:8.

2. transitive, to effect: τί, 1 Corinthians 12:11; (Ephesians 1:11); ἐνεργεῖν ἐνέργειαν, Ephesians 1:19f; τί ἐν τίνι, the dative of person, 1 Corinthians 12:6 (Buttmann, 124 (109)); Galatians 3:5; Philippians 2:13.

3. Middle, present ἐνεργοῦμαι; (imperfect ἐνηργουμην); (not found in the O. T. or in secular auth, and in the N. T. used only by Paul and James (cf. Lightfoot on Galatians, as below)); it is used only of things (cf. Winers Grammar, § 38, 6 at the end; (Buttmann, 193 (167))), to display one's activity, show oneself operative: (2 Thessalonians 2:7 (see μυστήριον, 2 at the end)); followed by ἐν with the dative of the thing, where, Romans 7:5; ἐν with the dative of the condition, 2 Corinthians 1:6; ἐν with the dative of person in whose mind a thing shows itself active, 2 Corinthians 4:12; Ephesians 3:20; Colossians 1:29; 1 Thessalonians 2:13; followed by διά with the genitive of thing, Galatians 5:6. In James 5:16 ἐνεργουμένη does not have the force of an adjective, but gives the reason why the δέησις of a righteous man has outward success, viz. as due to the fact that it exhibits its activity (works) (inwardly), i. e. is solemn and earnest. (The active (and passive) in Greek writings from Aristotle down.) (On this word cf. (besides Lightfoot on Galatians 2:8; Galatians 5:6) Fritzsche and Vaughan on Romans 7:5; Ellicott on Galatians, 2:8.)