History of the Peloponnesian War

And this city was the largest in Amphilochia and had the wealthiest inhabitants.

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;