from dunce + -ic + -al
1588 - A Discoursive Probleme Concerning Prophesies, John Harvey;
see below from E-NED
From: The Works of Francis Rabelais
Translated from the French by Sir Thomas Urquhart and Motteux, 1653
Printed for the Navarre Society, 18??
The Fourth Book of Dr. Francis Rabelais
Chapter LIII, How, by the Virtue of the Decretals, Gold is subtilly drawn out of France to Rome