battle ax

Boyd’s Bible Dictionary:

[ARMS.]

Concise Bible Dictionary:

 
Middle Ages battle axe.
Large hammer or ax, at the end of a long handle, a formidable ancient weapon (Jer. 51:2020Thou art my battle axe and weapons of war: for with thee will I break in pieces the nations, and with thee will I destroy kingdoms; (Jeremiah 51:20)). It is referred metaphorically to Jacob as God’s weapon to break the nations into pieces.

Strong’s Dictionary of Hebrew Words:

Number:
4661 (find all occurrences in KJV Bible)
Transliteration:
mappets
Phonic:
map-pates’
Meaning:
from 5310; a smiter, i.e. a war club
KJV Usage:
battle ax