Bailly
εως (ἡ) [ᾰ] domination, puissance, SPT.
Sap. 6, 3 ; JOS.
c. Ap. 1, 28, p. 461 Hav.
Étym. κρατέω.
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LSJ
εως, ἡ, might, power, dominion, LXX Wi. 6.3, Man. ap. J. Ap. 1.26. ἡ Καίσαρος κ. (sc. Αἰγύπτου), an era in Egypt (viz. the capture of Alexandria, 30 BC), BGU 174 (i AD), PFay. 89.2 (i AD), etc.
accession of an Emperor, BGU 362iv6, al. (iii AD).
prevalence, predominance, ἡ τῆς ἀπλανοῦς κ. Simp. in Cael. 475.30, 476.5.
possession, βίου κ. BMus.Inscr. 918 (Halic.); κ. τοῦ ἐν ὕλῃ σκοτεινοῦ Plot. 1.6.3. in Law, title to possession, Mitteis Chr. 31 iii 32 (ii BC); κ. καὶ κυρεία BGU 1187.7, etc.
Medic., retention, κ. ἐπίμονος σπέρματος (i.e. conception) Sor. 1.43; opp. ἔκκρισις, Gal. 8.440.
κ. τῶν ὑδάτων, i.e. drought, Cat.Cod.Astr. 7.184.
holding firm, steadying, Gal. 18(2).826, Olymp. in Mete. 96.11.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ἡ, das Beherrschen, Sp., auch das Festhalten, Behaupten.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)
TBESG
holding firm, steadying (MT)
Translators Brief lexicon of Extended Strongs for Greek based on Abbot-Smith, A Manual Greek Lexicon of the New Testament (1922) (=AS), with corrections and adapted by Tyndale Scholars