Quick Definition
ἐπιλανθάνομαι v. I forget, neglect
Strong's Definition
middle voice from 1909 and 2990; to lose out of mind; by implication, to neglect
KJV Usage: (be) forget(-ful of)
UBS Dictionary of the Greek New Testament
verb | aor. ἐπελαθόμην · inf. ἐπιλαθέσθαι · pf. ἐπιλέλησμαι | λανθάνω
29.14 · Memory and Recall · Not Remembering, Forgetting
to forget, to not recall to not recall information concerning some particular matter
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ἐπι-λανθάνομαι ; pf. pass. ἐπιλέλησμαι ; 2 aor. mid. ἐπελαθόμην ; Sept. often for N2w; lo forget: foll. by the inf., Mt. xvi. 5; Mk. viii. 14; foll. by an indir. quest. Jas. i. 24; in the sense of neglecting, no longer caring for: with the gen., Heb. vi. 10; xiii. 2,16; with the ace. (cf. W. § 30, 10 c.; Matthiae 8 347 Anm. 2, ii. p. 820 sq.), Phil. iii. 13 (14); with a pass. signification (Is. xxiii. 16; Sir. il. 14; xxxii. (xxxv.) 9; Sap. 11. 4, ete. [ef. B. 52 (46)]): ἐπιλελησμένος forgotten, given over to oblivion, i.e. uncared for, ἐνώπιον τοῦ θεοῦ before God i. 6. by God (Sir. xxiii. 14), Lk. xii. 6. [(From Hom. on.)]
Mounce Concise Greek Dictionary
ἐπιλανθάνομαι epilanthanomai 8x
to forget, Mt. 16:5; to be forgetful, neglectful of, to disregard, Phil. 3:13; Heb. 6:10; in NT in a passive sense, forgotten, Lk. 12:6
Abbott-Smith Greek Lexicon
ἐπι-λανθάνομαι
(alternative mid, form of ἐπιλήθω, to cause to forget) [in LXX chiefly for שָׁכַח ;]
to forget, neglect: c. inf., Mt 16:5, Mk 8:14; c. gen., He 6:10 13:2, 16; c. acc (as occasionally in cl.; MM, Exp., xiv), Phl 3:13; ὁποῖος ἦν, Ja 1:24; pass. ptcp. (cf. Is 23:16, Si 3:14 23:14, Wi 2:4), Lk 12:6.†
Moulton & Milligan — Vocabulary of the Greek NT
ἐπιλανθάνομαι. The construction with the acc. in Phil 318, while not unknown in classical, is amply attested in later Greek, e.g. P Oxy IV. γ4413 (B.c. 1) ( = Selections, p. 33) εἴρηκας δὲ ᾿Αφροδισιᾶτι ὅτι μή pe ἐπιλάθῃς" πῶς δύναμαί σε ἐπιλαθεῖν ; The correct middle also has the acc. in P Lond 964
Liddell-Scott-Jones — Greek-English Lexicon
ἐπιλανθάνω (epilanthanō) — to forget. Included with: ἐπιλήθ-ω, cause to forget, ὁ γάρ τ᾽ [ὕπνος] ἐπέλησεν ἁπάντων laps one in forgetfulness of all, [Refs]; ἡδονὴ σφέας ἐπιλήθουσα τῶν πάρος 2nd c.AD: Aretaeus Medicus “χρονίων νούσων θεραπευτικόν” 2.12; ἐπιλήσει σε ἀφροδισίων 2nd-3rd c.AD: Philostratus Sophista “Epistulae” 68:—passive, to be forgotten, in perfect participle ἐπιλελησμένος Vetus Testamentum Graece redditum LXX.Isa.23.16 [NT]: future -λησθήσομαι Vetus Testamentum Graece redditum “Wisdom of Solomon” 2.4.
II. middle, ἐπιλανθάνομαι, or more commonly ἐπιλήθομαι, Aeolic dialect and Doric dialect -λᾱθ- [Refs]future -λήσομαι: aorist 2 -ελᾰθόμην 5th-6th c.BC: Plato Philosophus “Apologia” 17a: late aorist 1 -ελήσατο Nonnus Epicus 4th-5th c.AD(?) “Dionysiaca” 48.969: with perfect active λέληθα 5th c.BC: Herodotus Historicus 3.46 [Refs], but more frequently passive -λέλησμαι [Refs 5th c.BC+]: piperfect -ελελήσμην [Refs]:—let a thing escape one, forget, lose thought of, c.genitive, ὅπως Ἰθάκης ἐπιλήσεται (Epic dialect aorist subjunctive) [Refs]; οὐδ᾽ ὁ γέρων δολίης ἐπελήθετο τέχνης 4.455 [Refs]; οὐδ᾽ ὣς σχεδίης ἐπελήθετο 8th c.BC: Odyssea Homerus Epicus “Odyssey” 5.324; γονέων ἐπιλάθεται (Doric dialect) [Refs 5th c.BC+]: c.infinitive, [Refs]participle, ὀφείλων ἐπιλέλᾱθα I forgot that I owed, [Refs 5th c.BC+]; περὶ οὗ.., περὶ ὅτου.., [Refs]; leave disregarded, neglect, πρόσταγμα 1st c.AD: Cebes Philosophus 24.
II.2. less frequently, forget wilfully, τῶν ἐντολέων μεμνημένος ἐπελανθάνετο 5th c.BC: Herodotus Historicus 3.147; ἑκὼν ἐπιλήθομαι [Refs]