Dictionary entry

ἐνκακέω

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

**† ἐν-κακέω, -ῶ (LTr., ἐγκ-; Rec. ἐκκ-; cf. WH, Notes, 157 f.; < κακός, cowardly),

[in Sm.: Ge 27:46, Nu 21:5, Pr 3:11, Is 7:16 *;]

to lose heart: Lk 18:1, II Co 4:1, 16, Ga 6:9, Eph 3:13, II Th 3:13 (Cremer, 330).†