What is the definition for the Greek word Argos?

Argos is an ancient city in SE Greece, in the NE Peloponnese: one of the oldest Greek cities, it dominated the Peloponnese in the 7th century BC. Its a beautiful city in Greece, the city my family is from. or Argos or Argusin mythology a monster with many eyes that the goddess Hera was said to have taken the eyes & placed them in the tail of her bird, the peacock.