Lexical Definition

‎ἀπαλγέω‎ apalgéō (ap-alg-eh'-o) to become callous ^G:V
from ‎ἀπό‎ and (to smart)

be past feeling.

• to grieve out, i.e. become apathetic

Abbott-Smith

* ἀπ-αλγέω, -ῶ,
1. prop., to cease to feel pain for (Thuc., ii, 61).
2. In late Gk.
(a) to despair (Polyb., i, 35, 5);
(b) to become callous, reckless (Polyb., xvi, 12, 7; MM, VGT, s.v.): Eph 4:19.†

Abbott-Smith References

Liddell-Scott-Jones

ἀπαλγέω-έω,

put away sorrow for, τὰ ἴδια[Refs 5th c.BC+]

__II generally, to be despondent, ἀ. ταῖς ἐλπίσιν[NT+2nd c.BC+]

_{LSJ Scripture Refs: Eph.4.19}