Lexical Definition

‎כָּחַשׁ‎ kâchash (kaw-khash') to deceive ^H:V
a primitive root

deceive, deny, dissemble, fail, deal falsely, be found liars, (be-) lie, lying, submit selves.

• to be untrue, in word (to lie, feign, disown) or deed (to disappoint, fail, cringe)

1) to deceive, lie, fail, grow lean, be disappointing, be untrue, be insufficient, be found liars, belie, deny, dissemble, deal falsely
1a) (Qal) to become lean
1b) (Niphal) to cringe, feign obedience
1c) (Piel)
1c1) to deceive, deny falsely
1c2) to act deceptively
1c3) to cringe
1c4) to disappoint, fail
1d) (Hithpael) to cringe, feign obedience

See Greek: ἀρνέομαι

Brown-Driver-Briggs

‎כָּחַשׁ‎ verb be disappointing, deceive, fail, grow lean (Late Hebrew ‎כָּחַשׁ‎ grow lean; Hiph`il convict of falsehood, refute; Aramaic ‎כְּחַשׁ‎ grow lean; ‎כַּחְשָׁא‎ leanness, ‎כְּחִישׁוּתָא‎ leanness, weakness; Aph`el as Late Hebrew Hiph`il) —

Qal. Perfect 3 masculine singular ‎וּבְשָׂרִי כָּחַשׁ מִשָּׁ֑מֶן‎ Ps 109:24 my flesh hath grown lean (away) from fatness (|| ‎בִּרְכַּי כָּֽשְׁלוּ מִצּוֺם‎). Niph`al Imperfect ‎וְיִכָּֽחֲשׂוּ אֹיְבֶיךָ לָךְ‎ Deut 33:29 thine enemies shall cringe (come cringing, i.e. originally act deceptively, feigning obedience) to thee (compare also Pi`el 3, Hithpa`el) Pi`el Perfect 3 masculine singular ‎כִּחֵשׁ‎ 1Kgs 13:18; Hab 3:17 ‎וְכִּ֫חֶשׁ‎ consecutive (before monosyll.) Lev 5:22*; Job 8:18, etc.; Imperfect ‎יְכַ֫חֶשּׁ (בָּהּׅ‎ Hos 9:2 3 feminine singular ‎וַתְּכַחֵשׂ‎ Gen 18:15, etc.; Infinitive absolute ‎כַּחֵשׁ‎ Hos 4:2; Isa 59:13 construct Zech 13:4 —

1. device, absolute Gen 18:15 (J), Josh 7:11 (JE), Hos 4:2 (‎אלה וכחשׁ‎ together = false swearing according to We^{Kl. Pr}.; + ‎וְרָצֹחַ וְגָנֹב וְנָאֹ֑ף‎), compare ‎לֹא תִגְנֹ֑בוּ וְלֹאֿ‎ ‎תְכַחֲשׁוּ וְלֹא תְשַׁקְּרוּ אִישׁ בַּעֲמִיתוֺ‎ Lev 19:11 (H); ‎׳‎‎לְמַעַן כ‎ Zech 13:4 in order to deceive; followed by ‎לְ‎ person 1Kgs 13:18; Job 31:28 followed by ‎בְ‎ person and of thing Lev 5:21*, ‎בְ‎ of thing v.Lev 6:22*.

2. act deceptively against (i.e. seem to acknowledge, but not really do so), followed by ‎בְ‎ person Josh 24:27 (E), Jer 5:12; Isa 59:13; Job 8:18, apparently also ‎בָּהּ‎ ‎׳‎‎וְתִירוֺשׁ יכ‎ Hos 9:2 and new wine shall deny her (Israel; i.e. refuse to acknowledge her as its mistress, not yield itself to her); absolute Prov 30:9.

3. cringe = come cringing (make shew of obedience, see Niph`al) followed by ‎בְ‎ person Ps 18:45* (Hithpa`el in || 2Sam 22:45); followed by ‎לְ‎ person Ps 66:3; Ps 81:16*.

4. disappoint, fail, absolute ‎כִּחֵשׁ מַעֲשֵׂה זַיִת‎ Hab 3:17 the product of the olive hath failed (in sense compare Hos 9:2 above)

Hithpa`el Imperfect ‎יִתְכַּחֲשׁוּ לִי‎ 2Sam 22:45 shall come cringing to me (|| Ps 18:45*. see above)

Brown-Driver-Briggs References