X armed, buckler, defence, ruler, + scale, shield

Strong’s Dictionary of Hebrew Words:

Transliteration:
magen
Phonic:
maw-gane’
Meaning:
also (in plural) feminine mginnah {meg-in-naw'}; from 1598; a shield (i.e. the small one or buckler); figuratively, a protector; also the scaly hide of the crocodile
KJV Usage:
X armed, buckler, defence, ruler, + scale, shield