Lexical Definition

‎ἀσέλγεια‎ asélgeia (as-elg'-i-a) debauchery ^G:N-F
from a compound of ‎Α‎ (as a negative particle) and a presumed (of uncertain derivation, but apparently meaning continent)

filthy, lasciviousness, wantonness.

• licentiousness (sometimes including other vices)

Abbott-Smith

** ἀσέλγεια, -ας, ἡ (< ἀσελγής, licentious; v. MM, s.v.), [in LXX: Wi 14:26, III Mac 2:26*;]
licentiousness, wantonness, excess: Mk 7:22, Ro 13:13, II Co 12:21, Ga 5:19 (Lft., in l.), Eph 4:19, I Pe 4:3, II Pe 2:2, 7, 18, Ju 4.†
SYN.: ἀσωτία, profligacy, prodigality (v. Tr., Syn., § xvi; DB, iii, 46).

Abbott-Smith References

Liddell-Scott-Jones

ἀσέλγεια-εια, ἡ,

licentiousness, wanton violence, [Refs 5th c.BC+]; insolence, opposed to κολακεία, [Refs 4th c.BC+]

__II licentiousness, περὶ τὰς σωματικὰς ἐπιθυμίας[Refs 2nd c.BC+]