Sentence:  ... Or should she, confident, / As sitting queen adored on beauty's throne, / Descend with all her winning charms begirt / To enamour, as the <WSD>zone</WSD> of Venus once / Wrought that effect on Jove, so fables tell : / How would one look from his majestic brow, / Seated as on the top of virtue's hill, / Discountenance her despised, and put to rout / All her array; her female pride deject, / Or turn to reverent awe ? ... 
Meaning of the word marked with <WSD> tags:  A belt or girdle.