IPA: /ɪmˈbætəlmənt/
KK: /ɪmˈbætəlmənt/
A structure or feature on a castle or fortification that consists of a series of raised sections and openings, allowing defenders to shoot at attackers while being protected.
The soldiers stood behind the embattlement, ready to defend the castle from invaders.
Embattlement is formed from "em-" (meaning to cause to be in) and "battlement" (from Old French *bataille*, meaning battle or fighting). The word refers to the act of fortifying a structure for battle, creating a defensive feature on a wall or castle.
Think of 'causing to be in' a 'battle' — that's why embattlement means creating defenses for battle.