1861, originally as the name of a breakaway Confederate region of southern New Mexico; organized roughly along modern lines as a U.S. territory in 1863. From Spanish Arizonac, probably from a local name among the O'odham (Piman) people meaning "having a little spring." Alternative theory is that it derives from Basque arizonak "good oaks."
State in the southwestern United States bordered by Utah to the north, New Mexico to the east, Mexico to the south, and California and Nevada to the west. Its capital and largest city is Phoenix.
Note: The Grand Canyon is in northwestern Arizona.