A small or diminutive crenel; a tiny notch or opening along a fortification wall.
From 'crenel' plus the diminutive suffix '-et,' suggesting something small or lesser in scale. This term appears rarely in architectural descriptions of minor fortifications.
Diminutive suffixes like '-et' are how English gets adorably specific—a 'crenelet' is basically the castle wall's version of a small notch, proving even tiny architectural details deserved their own names!
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