Strong's Definition
a primitive root; to pierce; to be hollow, or (figuratively) foolish
KJV Usage: hollow, vain
STEPBible — Tyndale Abridged Hebrew Lexicon
נָבַב (na.vav) — be hollow. 1) (Qal) to hollow out 1a) hollowed (participle)
UBS Dictionary of Biblical Hebrew
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
[נָבַב] vb. hollow out base
