Abbott-Smith Manual Greek Lexicon
ἀπ-αλγέω (G524)
1 * ἀπ-αλγέω , -ῶ , prop., to cease to feel pain for (Thuc., ii, 61). In late Gk. to despair (Polyb., i, 35, 5); to become callous , reckless (Polyb., xvi, 12, 7; MM, VGT , s.v.): Eph 4:19 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain