Lexical Definition

‎שָׁכַח‎ shâkach (shaw-kakh') to forget ^H:V
or שָׁכֵחַ shâkêach (shaw-kay'-akh); a primitive root

[idiom] at all, (cause to) forget.

• to mislay, i.e. to be oblivious of, from want of memory or attention

1) to forget, ignore, wither
1a) (Qal)
1a1) to forget
1a2) to cease to care
1b) (Niphal) to be forgotten
1c) (Piel) to cause to forget
1d) (Hiphil) to make or cause to forget
1e) (Hithpael) to be forgotten

See Greek: ἀνελεήμων · ἐγκαταλείπω · ἐπιλανθάνομαι · καταλείπω · λήθη

Extended Information

• Aramaic equivalent: she.khach (‎ש‎ְׁ‎כ‎ַ‎ח‎ "to find" שְׁכַח)

Brown-Driver-Briggs

‎שָׁכַח‎₁₀₂ verb forget (Late Hebrew id.; and (Pi`el) Eccl 11:25 (twice in verse); Aramaic ‎שְׁכַךְ‎ is find); —

Qal₈₆ Perfect 3 masculine singular ‎׳‎‎שׁ‎ Ps 9:13* +, suffix ‎שְׁכֵחָ֑נִי‎ Isa 49:14 2 feminine singular ‎שָׁכַחְתְּ‎ Jer 13:25 1 plural suffix ‎שְׁכַחֲנוּךָ‎ Ps 44:18*, etc.; Imperfect ‎יִשְׁכַּח‎ Deut 4:31 +, etc.; Imperative feminine singular ‎שִׁכְּחִי‎ Ps 45:11* Infinitive absolute ‎שָׁכֹךְַ‎; Participle plural construct ‎שֹׁכְחֵי‎ Job 8:13; Ps 50:22 — forget:

1. subject man,
a. accusative of thing Gen 27:45 (E), Deut 4:9; Deut 9:7 (opposed to ‎זָכַר‎) +, = forget and leave, ‎ב‎ of location, Deut 24:19 with object clause with ‎כִּי‎ Job 39:15 with ‎מִן‎ infinitive Ps 102:5*.
b. with accusative of person, involving forgetting to mention, Gen 40:23 (E; opposed to ‎זכר‎), ceasing to care for Jer 30:14 (figurative), Isa 49:15 (twice in verse) (accusative omitted), vIsa 49:15; Job 19:14; Ps 45:11* with accusative Jerusalem Ps 137:5a; ‎יִשְׁכָּחֵהוּ רֶחֶם‎ Job 24:20 absolute Ps 137:5b ‎׃תִּשְׁכַּח יְמִינִי‎ AE Ki supply ‎הַמַּעֲשֶׂה‎ or ‎הַנִּגּוּן‎ (whence AV her cunning), but forced: ᵐ5 ‎תִּשָּׁכַח‎; read probably (Gr Bu and others) ‎תִּכְחַשׁ‎ let it grow lean (Ps 109:24, compare Zech 11:17), or (Che) ‎תְּכַחַשׁ‎ let it disappoint (me), fail (Hab 3:17).
c. especially with accusative ‎׳‎‎י‎ (God), Hos 2:15*; Hos 8:14; Hos 13:6; Hos 1:9; (‎׳‎‎שָׁכֹחַ תִּשׁ‎) + 16 t. (5 t. Deuteronomy, 4 t. Jeremiah), + Ps 59:12* (accusative omitted); also accusative of divine name Jer 23:27 (‎בַּבַּעַל‎), Ps 44:21* commands of ‎׳‎‎י‎ Hos 4:6; Deut 26:13 (accusative omitted) Ps 119:16 + 7 t. Ps 119, his doings and ways, vPs 119:139; Ps 78:7; Ps 78:11; Ps 103:2; Ps 106:13, his covenant Deut 4:23; Deut 4:31; 2Kgs 17:38; Prov 2:17 law of wisdom Prov 3:1, that is accusative ‎בִּינָה‎ Prov 4:6.

2. subject ‎׳‎‎י‎ (God):
a. accusative of person Hos 4:6; 1Sam 1:11 (opposed to ‎זָכַר‎), Lam 5:20; Isa 49:14 (|| ‎עָזַב‎), Ps 10:12; Ps 13:2*; Ps 42:10*.
b. accusative of sins Amos 8:7; Ps 10:11 (accusative omitted), cry Ps 9:13* (opposed to ‎זָכַר‎), compare, of distress, Ps 44:25*.
c. voice of foes Ps 74:23.
d. followed by infinitive Ps 77:10*. Niph`al Perfect 3 masculine singular ‎נִשְׁכַּח‎ Eccl 9:5, etc.; Imperfect ‎יִשָּׁכַח‎ Ps 9:19*, 3 feminine singular ‎תִּשָּׁכֵחַ‎ Jer 20:11, etc.; Participle feminine singular ‎נִשְׁכָּחָה‎ Isa 23:16, ‎נִשְׁכַּחַת‎ vIsa 23:15, plural ‎נִשְׁכָּ חִים‎ Job 28:4 — be forgotten: subject of thing Gen 41:30 (E), Deut 31:21; Jer 20:11; Jer 23:40; Jer 50:5; Isa 65:11 subject person Ps 9:19*; Ps 31:13*; Eccl 2:16, Tyre Isa 23:15; Isa 23:16 (under figure of harlot), subject ‎זִכְרָם‎ Eccl 9:5 ‎מִנִּי רָ֑גֶל‎ ‎׳‎‎הַנִּשׁ‎ Job 28:4. Pi`el Perfect 3 masculine singular ‎׳‎‎וגו‎ ‎׳‎‎שִׁכַּח י‎ Lam 2:6 ‎׳‎‎י‎ hath caused to forget (be forgotten) in Zion assembly and sabbath. Hiph`il Infinitive ‎לְהַשְׁכִּיחַ‎ Jer 23:27 to make my people forget my name (2 accusative). Hithpa`el Ipmf. 3 masculine plural ‎יִשְׁתַּכְּחוּ‎ Eccl 8:10 they were forgotten in the city.

Brown-Driver-Briggs References