Quick Definition
κράτος, ους, τό n.n. dominion, strength, power
Strong's Definition
perhaps a primary word; vigor ("great") (literally or figuratively)
KJV Usage: dominion, might(-ily), power, strength
UBS Dictionary of the Greek New Testament
noun, n. | -ους | κρατέω
76.6 · Power, Force
power, might the power to rule or control
ACT 19:20 · EPH 1:19 · EPH 6:10 · COL 1:11 · 1TI 6:16 · HEB 2:14 · 1PE 4:11 · 1PE 5:11 · JUD 1:25 · REV 1:6 · REV 5:13
76.7 · Power, Force
mighty deed, miracle a deed manifesting great power, with the implication of some supernatural force
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
κράτος, -eos (τους), [fr. a root meaning ‘to perfect, complete’ (Curtius § 72); fr. Hom. down], τό, Hebr. WD 1. force, strength. 2. power, might: τὸ κράτος τῆς ἰσχύος αὐτοῦ, the might of his strength, Eph. 1.19; vi. 10; τῆς δόξης αὐτοῦ, Col. 1.11; κατὰ κράτος, mightily, with great power, ηὔξανε, Acts xix. 20; meton.; a mighty deed, a work of power: ποιεῖν xp. (cf. ποιεῖν δυνάpets), Lk. i. 51. 3. dominion: in the doxologies, 1 Tim. vi. 16; 1 Pet.iv.11; v.11; Jude 25; Rev.i.6; v.13; τινός (gen. of obj.), Heb. ii. 14 (τὸ Περσέων κράτος ἔχοντα, Hdt. 3, 69). [Sy¥N. see δύναμις, fin.]
Mounce Concise Greek Dictionary
κράτος kratos 12x
strength, power, might, force, Acts 19:20; Eph. 1:19; meton. a display of might, Lk. 1:51; power, sway, dominion, Heb. 2:14; 1 Pet. 4:11; 5:11
Abbott-Smith Greek Lexicon
κράτος, -εος (-ους), τό,
[in LXX chiefly for עֹז, Jb 12:16, Ps 89 (90):11 al.;]
strength, esp. as in Hom., of bodily strength.
power, might: He 2:14; τὸ κ. τῆς ἰσχύος αὐτοῦ, Eph 1:19 6:10 (Is 40:26, Da TH 4:27); τ. δόςης αὐτοῦ, Col 1:11; κατὰ κράτος, mightily, Ac 19:20; a mighty deed, an act of power, Lk 1:51; in doxologies, I Ti 6:16, I Pe 4:11 5:11, Ju 25, Re 1:6 5:13.†
Liddell-Scott-Jones — Greek-English Lexicon
κράτος (kratos) — power. κράτος [ᾰ], Ionic dialect and Epic dialect κάρτος, εος, τό, both in [Refs 8th c.BC+] κρέτος [Refs 7th c.BC+]:— strength, might, in [Refs 8th c.BC+] especially of bodily strength, [Refs 8th c.BC+], etc.; τὸ γὰρ αὖτε σιδήρου γε κ. ἐστίν this (i.e. τὸ βάψαι) is what gives strength to iron, [Refs 8th c.BC+]; κατὰ κράτος with all one's might or strength, [Refs 6th c.BC+], etc.: frequently in phrase αἱρεῖν κατὰ κ. take by storm, [Refs 6th c.BC+]; πρὸς ἰσχύος κράτος, opposed to λόγῳ, [Refs 5th c.BC+]
2. personified, K. [Refs 5th c.BC+].
II. power, τοῦ γὰρ κ. ἐστὶ μέγιστον, of Zeus, [LXX+8th c.BC+], etc.: plural, [Refs 5th c.BC+]; especially of political power, rule, sovereignty, [Refs 7th c.BC+]; τὸ πᾶν κ. ἔχειν to be all-powerful, [Refs 5th c.BC+]; βασιλεὺς πρῶτος ἐν κράτει Ὀδρυσῶν ἐγένετο in real power, [Refs 5th c.BC+] sovereign power, [Refs]
II.2. with genitive, power over, [Refs 6th c.BC+]; ὧν ἂν ᾖ τὸ κ. τῆς γῆς whoever have possession of the land, [Refs 6th c.BC+]: plural, [Refs 5th c.BC+] (Lyric poetry).
II.3. of persons, a power, an authority, [Refs 5th c.BC+]
III. mastery, victory, frequently in [Refs 8th c.BC+]; ἀέθλων κ. victory in.., [Refs 5th c.BC+]; κ. ἀριστείας the meed of highest valour, [Refs 6th c.BC+].
IV. in Medicine texts, in plural, ligaments, [Refs 5th c.BC+]
IV.2. ={ταρσός}, back of the hand, [Refs 2nd c.AD+]
V. [Refs 4th c.BC+] name for ten, [Refs].—This word and its derivations take two forms, κρατ- and καρτ-; the latter is mostly Epic dialect, as κάρτος, κάρτιστος, καρτύνω, but in κρατερός and καρτερός the reverse holds, see at {κρατερός} near the end; κρατέω, κρατύς have no form καρτ-. (κρατ- and καρτ- from kṛt-, weak form of κρετ-, compare κρέτος, κρέσσων.)