What does coupure mean?
A coupure is a breach or cut — most characteristically, the opening that besieging forces hacked or blew through a rampart, palisade, or other defensive structure during a siege. Borrowed from French, where it derives from the verb 'couper', meaning 'to cut', the word entered English as a technical term of military engineering and later saw occasional use more broadly for any incision or interruption of continuity, including in surgical contexts. Today it is decidedly rare: general readers will meet it chiefly in historical narratives of fortress warfare or in older technical literature, where its French flavor lends precision to descriptions of engineered destruction. Because it looks and sounds like the far more familiar 'coup', it invites confusion, but the two are unrelated in sense — a coup is an act of sudden seizure, while a coupure is the physical wound inflicted on a wall or body. For anyone reading early-modern military history, knowing this word clarifies exactly what was meant when chroniclers described troops forcing an entry.
nounA breach, cut, or break made in something, especially a defensive wall, rampart, or other fortification. The word is rare in modern English and survives chiefly in historical and military writing.
- A breach or cut made in a fortification, rampart, or similar defensive work.
- More generally, a cut or break made in anything, such as an incision in tissue or an interruption of continuity.
"The besiegers finally forced a coupure in the rampart and poured through the gap at dawn."
"Engineers widened the coupure so that artillery could be dragged up to the breach."
"The surgeon noted a clean coupure along the patient's forearm."
Standard pluralization applies; the plural appears mainly in technical or historical descriptions involving multiple breaches.
"The bombardment opened several coupures in the enceinte."
Borrowed straight from French siegecraft, this rare word names the very gap that attackers tore through a fortress wall — a hole with its own vocabulary.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of coupure
Coupure comes directly from French, formed from the verb 'couper' ('to cut'), which itself derives from the Late Latin noun 'colpus', from Greek 'kolaphos' ('a blow'), via Old French 'coper'/'couper'. It entered English in the seventeenth century as a technical term of siegecraft, denoting a cut or breach forced through fortifications, and retained occasional broader use for incisions. Its cognates include other borrowings from the same French root, notably 'coupon' and 'coupe'.
How coupure is actually used
Coupure is a formal, technical term now largely confined to historical accounts of sieges and to older medical or surgical texts. In ordinary speech, words like 'breach', 'cut', or 'gash' are preferred; encountering 'coupure' today usually signals specialized or deliberately archaic register.
Easily confused with coupure
A 'coup' is a sudden decisive act, most famously the seizure of power by force, while a 'coupure' is a physical cut or breach made in a structure or surface.