History of the Peloponnesian War

But many generations later the Amphilochians, under the stress of misfortunes, invited in the Ambraciots, who bordered on Amphilochia, to share the place with them, and these first became Hellenes and adopted their present dialect in consequence of their union with the Ambraciots;

but the rest of the Amphilochians are still barbarians. Now in course of time the Ambraciots expelled the Argives and themselves seized the city.