1911 Encyclopædia Britannica/Jerkin
JERKIN, a short close-fitting jacket, made usually of leather, and without sleeves, the typical male upper garment of the 16th and 17th centuries. The origin of the word is unknown. The Dutch word jurk, a child’s frock, often taken as the source, is modern, and represents neither the sound nor the sense of the English word. In architecture the term “jerkin-roofed” is applied, probably with some obscure connexion with the garment, to a particular form of gable end, the gable being cut off half way up the roof and sloping back like a “hipped roof” to the edge.