Meanings: Brown-Driver-Briggs (1906) and Strong's Hebrew Dictionary (1890), public domain, via the Open Scriptures Hebrew Bible Project (CC BY 4.0). TWOT numbers for reference only.
Root family 1285: נָבַלnābal — be senseless, foolish; regard, treat as a, with contumely; wilt, fall, fail, faint, wicked, despise, disgrace; dishounour, lightly esteem, fade, fadeing, falling, do foolishly, come to nought, make vile, wither