crenelles
Crenelles are small notches along the upper edge of a wall that, together with the solid merlons, form a crenellated parapet. The arrangement—alternating notches (crenelles) and blocks (merlons)—is called crenellation and was a common feature of medieval fortifications, enabling defenders to observe and fire from behind cover.
Etymology: The term crenelle derives from French crénelle, a diminutive of crête, meaning crest or ridge. In
Historical use: Crenellations appeared across medieval Europe and were widely implemented in stone castles, city walls,
Decorative and heraldic use: Beyond purely military architecture, the crenellated motif appears in decorative mouldings and