英语词源字典 - 在线词源网站

battle [battle 词源字典]: battle: [13] English acquired battle via Old French bataille and Vulgar Latin *battālia from late Latin battuālia ‘fencing exercises’. This was a derivative of the verb battuere ‘beat’ (source also of English batter and battery), which some have viewed as of Celtic origin, citing Gaulish andabata ‘gladiator’, a possible relative of English bat.

Related words include battalion [16], ultimately from Italian battaglione, a derivative of battaglia ‘battle’; battlements [14], from Old French batailler ‘provide with batailles – fortifications or battlements’; and derivatives such as abate, combat, and debate.
=> abate, bat, battalion, battery, combat, debate[battle etymology, battle origin, 英语词源]
crenellate: crenellate: [19] The 19th century seems a surprisingly late date for English to have acquired a term so closely associated with medieval battlements, but it is a little misleading. For essentially the same word entered the language in the 13th century as kernel. Both come ultimately from late Latin crēna ‘notch’ (probable source also of English cranny [15]). In Vulgar Latin this developed the diminutive form *crenellus, metathesized in medieval Latin as kernellus.
=> cranny
battlement (n.): early 14c., from Old French bataillement, earlier bastillement "fortification," from bastillier "to fortify, to equip with battlements," from bastille "fortress, tower" (see bastion). The raised parts are cops or merlons; the indentations are embrasures or crenelles.
castellated (adj.): "furnished with turrets and battlements," 1670s, from Medieval Latin castellatus "built like a castle," past participle of castellare "to fortify as a castle," from Latin castellum "fort" (see castle (n.)). Related: Castellation.
embattled (adj.): "under attack," by 1882; earlier and more etymologically it meant "prepared to fight" (late 15c.), and (of structures) "fitted with battlements" (late 14c.); past participle adjective from embattle (v.).