Abbott-Smith Manual Greek Lexicon
ἰσχύς (G2479)
10 ἰσχύς , -ύος, ἡ , [in LXX chiefly for כֹּחַ , also for חַיִל , עֹז , גְּבוּרָה , etc.;] strength , might , power , force , ability : Re 5:12 7:12 ; ἰ. κ. δύναμις , II Pe 2:11 ; τ. κράτος τῆς ἰ. ( Is 40:26 ), Eph 1:19 6:10 ; ἡ δόξα τῆς ἰ. , II Th 1:9 ; ἐξ ἰ. , I Pe 4:11 ; ἐν ὅλῃ τ. ἰ. , Mk 12:30 , 33 (LXX) , Lk 10:27 (LXX) .† SYN. : δύναμις (q.v., and cf. ICC , Phl 4:13 ); κράτος (cf. M, Th. , I, 1:9).
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain