1787, from Spanish Azteca, from Nahuatl aztecatl (plural aztecah), meaning "coming from Aztlan," name of their legendary place of origin, usually said to lie somewhere in what is now southwestern U.S.
A Native American people who ruled Mexico and neighboring areas before the Spaniards conquered the region in the sixteenth century. Starting in the twelfth century, they built up an advanced civilization and empire. (See Hernando Cortés and Montezuma.)