10 letters · 14 points in Scrabble
noun a rampart built around the top of a castle with regular gaps for firing arrows or guns
originFrom Middle English batilment, from Old French bataillement, earlier bastillement (“fortification”), from bastillier (“to fortify, to equip with battlements”), from bastille (“fortress”) (see bastion). By surface analysis, battle + -ment.
Etymology from Wiktionary, CC BY-SA 3.0