Lexical Definition

‎λήθη‎ lḗthē (lay'-thay) forgetfulness ^G:N-F
from ‎λανθάνω‎

+ forget.

• forgetfulness

Abbott-Smith

λήθη, -ης, ἡ (< λήθω = λανθάνω), [in LXX: Le 5:15 (מַעַל), Wi 16:11, Si 14:7, al.;]
forgetfulness: λ. λαβεῖν (on the phrase, v. Mayor, in l.): II Pe 1:9.†

Abbott-Smith References

Liddell-Scott-Jones

λήθη-η,

Doric dialect λάθα, ἡ, forgetting, forgetfulness, personified in [λήθηη αἱρείτω 8th c.BC: Ilias Homerus Epicus “Illiad” 2.33; [Περσεφόνη] βροτοῖς παρέχει λήθηην, βλάπτουσα νόοιο 6th c.BC: Theognis Elegiacus 705; κακοῦ λ. 5th c.BC: Sophocles Tragicus “Philoctetes” 878, compare 5th c.BC: Euripides Tragicus “Bacchae” 282, “Or.” 213 ">Refs 8th c.BC+]; λήθηην ποιεύμενος τά μιν ἐόργεε forgetting.., [λήθηην ἐμποιῆσαι τῶν πεπραγμένων 5th-6th c.BC: Isocrates Orator 1.8; εἰς λήθηην ἐμβαλεῖν τινα 4th c.BC: Aeschines Orator 3.205 ">Refs 5th c.BC+]; λήθηη λαμβάνει, ἔχει τινά, [λήθηη τινὸς ἐγγίγνεταί τινι 5th-6th c.BC: Xenophon Historicus “Memorabilia” 1.2.21 ">Refs 5th c.BC+]; εἰς λ. ἀφιγμένα forgotten, [Refs 1st c.BC+]

__II after [Refs 8th c.BC+], of a place of oblivion in the lower world, Λήθης δόμοι [Refs 5th c.BC+]; also, ὁ τῆς Λήθης ποταμός, of the river Λιμαίας in Lusitania, [Refs 1st c.BC+]