1650s, "pertaining to the French province of Anjou," from French Angevin, from Medieval Latin Andegavinus, from Andegavum "Angers," city in France, capital of Anjou (Latin Andegavia, from Andecavi, Roman name of the Gaulish people who lived here, which is of unknown origin). In English history, of the Plantagenet kings (beginning with Henry II) who were descended from Geoffrey, count of Anjou, and Matilda, daughter of Henry I.