A primitive root; to be sluggish -- cease, be feeble, faint, be slacked.
Englishman's Concordance
1) to grow numb, be feeble, be benumbed 1a) (Qal) to be feeble 1b) (Niphal) to be benumbed Part of Speech: verb A Related Word by BDB/Strong’s Number: a primitive root Same Word by TWOT Number: 1740
Brown-Driver-Briggs
[מּוּג] verbgrow numb (Arabic grow cool; **Syriac become cold (Mt 24:12), fail, become weak, inefficient; ᵑ7מּוּגbecome cold, fail, be or (Pa`el) make ineffectual; Late Hebrew id., fail, vanish. Syriac be cold; ᵑ7מּוּגcease, be helpless; Late Hebrew id. vanish); —
QalImperfect3masculine singular וַיָּפָג לִבּוֺGenesis 45:26; 3feminine singular תָּפוּגPsalm 77:3 of hand (si vera lectio, see נגר), i.e. drop helpless; Habakkuk 1:4 of תּוֺרָה, i.e. be ineffective.
Niph`alPerfect1singular נְפוּגֹתִי וְנִדְכֵּיתִיPsalm 38:9I am benumbed and crushed (figurative); read probably also אֶמּוֺגָהPsalm 88:16 (for ᵑ0ἅπ. λεγ. אָפוּנָה), Ol Hup Dy Gr Che אָפוּגָה.
Genesis 45:26 HEB:אֶ֣רֶץ מִצְרָ֑יִם וַיָּ֣פָג לִבּ֔וֹ כִּ֥י NAS: of Egypt. But he was stunned, for he did not believe KJV: And Jacob's heart fainted, for he believed INT: the land of Egypt was stunned heart and indeed
Psalm 38:8 HEB: נְפוּג֣וֹתִי וְנִדְכֵּ֣יתִי עַד־ NAS:I am benumbed and badly crushed; KJV:I am feeble and sore broken: INT:I am benumbed crushed against
Psalm 77:2 HEB:נִ֭גְּרָה וְלֹ֣א תָפ֑וּג מֵאֲנָ֖ה הִנָּחֵ֣ם NAS: out without weariness; My soul KJV: in the night, and ceased not: my soul INT: was stretched without weariness refused to be comforted
Habakkuk 1:4 HEB:עַל־ כֵּן֙ תָּפ֣וּג תּוֹרָ֔ה וְלֹֽא־ NAS: the law is ignored And justice KJV: Therefore the law is slacked, and judgment INT: and after that is ignored the law not