Word Study
crenellate
OXFORD DICTIONARY
crenellate, v.tr. provide (a tower etc.) with battlements or loopholes.
Derivative
crenellation n.
Etymology
F cr{eacute}neler (as CRENEL)
THESAURUS
crenellate
Vandyke, arm, armor, armor-plate, bank, barricade, battle, blaze, blockade, bulwark, castellate, chop, crenulate, crimp, cut, dig in, embattle, entrench, fence, fortify, garrison, gash, incise, indent, jag, knurl, machicolate, man, man the garrison, mill, mine, nick, notch, palisade, picot, pink, scallop, scarify, score, scotch, serrate, slash, tooth, wallFor further exploring for "crenellate" in Webster Dictionary Online