What does "dunce" mean?

Dunce: One backward in book learning; a child or other person dull or weak in intellect; a dullard; a dolt. I never knew this town without dunces of figure. Swift. Note: The schoolmen were often called, after their great leader Duns Scotus, Dunsmen or Duncemen. In the revival of learning they were violently opposed to classical studies; hence, the name of Dunce was applied with scorn and contempt to an opposer of learning, or to one slow at learning, a dullard.