Strong's Definition
from 5310; a smiter, i.e. a war club
KJV Usage: battle ax
STEPBible — Tyndale Abridged Hebrew Lexicon
מַפֵּץ (map.pets) — war-club. war club, club, battle axe, hammer
UBS Dictionary of Biblical Hebrew
noun m · נפץ
Weapons
war club, mace = a short wooden rod used for striking the enemy in hand-to-hand combat; it could be held with one hand and was used to strike the enemy on all parts of his body, particularly where he was unprotected by armor; possibly fitted with a heavy head made of stone or metal
1 JER 51:20 RSV GNT CEV ESV "hammer" NIV NJPS NRSV "war club" NJB "mace" REB "battleaxe"
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
מַפֵּץ n.m. war-club (lit. a shatterer);—Je 51:20 ref