Sentence:  It was soon over, and the unmoved magistrate calmly ordained that Deborah Williams, Elizabeth and Faith Wilson, should be tied to a cart's <WSD>tail</WSD>, and thus led through the principal streets of the town, receiving during their progress twenty lashes each, well laid on, upon the naked back. 
Meaning of the word marked with <WSD> tags:  The tail-end of an object, e.g. the rear of an aircraft's fuselage, containing the tailfin.