Tenaille
![diagrams of a tenaille, a tenaille augmented with a straight face (un pan coupé), and a bonnet or priests cap (with two tenailles) outside a ravelin.](/Images/godic/202502/15/Tenaille1825.png")
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Tenaille (archaic Tenalia) is an advanced defensive-work, in front of the main defences of a fortress which takes its name from resemblance, real or imaginary, to the lip of a pair of pincers. It is "from French, literally: tongs, from Late Latin tenācula, pl of tenaculum".