"The protector of the city;" a surname of Zeus, under which he had an altar on the acropolis at Athens. Upon this altar barley and wheat were strewed, which were consumed by the bull about to be sacrificed to the god. The priest who killed the victim, threw away the axe as soon as he had struck the fatal blow, and the axe was then brought before a court of justice. (Paus. i. 24. § 4, 28. § 11.)