Strong's Definition
a primitive root; to wilt; generally, to fall away, fail, faint; figuratively, to be foolish or (morally) wicked; causatively, to despise, disgrace
KJV Usage: disgrace, dishounour, lightly esteem, fade (away, - ing), fall (down, -ling, off), do foolishly, come to nought, X surely, make vile, wither
STEPBible — Tyndale Abridged Hebrew Lexicon
נָבַל (na.val) — be senseless. 1) to be senseless, be foolish 1a) (Qal) to be foolish 1b) (Piel) 1b1) to regard or treat as foolish 1b2) to treat with contempt
נָבֵל (na.vel) — to wither. 1) to sink or drop down, languish, wither and fall, fade 1a) (Qal) 1a1) to sink or drop down 1a2) to fall, wither and fall, fade 1a3) to droop
UBS Dictionary of Biblical Hebrew
verb · נָבָל · נְבָלָה · נַבְלוּת
Dry | verb qal | ≈ אבל · אמל · יבשׁ · מלל · מקק · תמם
to wither, to fade = process by which plants and their products become devoid of moisture, and therefore lose color and bend over ► which may ultimately result in death if circumstances do not change; ≈ associated with drought and destruction, often as punishment from God
PSA 1:3 · PSA 37:2 · ISA 1:30 · ISA 24:4 · ISA 24:4 · ISA 28:1 · ISA 28:4 · ISA 34:4 · ISA 34:4 · ISA 34:4 · ISA 40:7 · ISA 40:8 · ISA 64:5 · JER 8:13 · EZK 47:12
Weak | verb qal
to wear oneself out, to tire oneself out = process by which humans lose their strength as a result of hard work
Afraid | verb qal
to lose courage, to lose heart = process by which humans lose courage when confronted with a formidable opponent
Impact
to crumble away = process by which objects slowly break or fall apart into small pieces
verb · נְבֵלָה
Foolish | Great
to be foolish = state in which humans are foolish but think highly of themselves
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
נָבַל vb. be senseless, foolish Qal if thou hast been foolish in lifting up thyself
Pi. regard or treat as a נָבָל (q.v.), i.e. with contumely
base
נָבֵל vb. sink or drop down, languish, wither and fall, fade Qal sink or drop down
usu. fall like a leaf, or flower wither and fall, fade
base