E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
A council of confederate Greeks from twelve of their tribes, each of which had two deputies. The council met twice a yearin the spring at Delphi, and in the autumn at Thermopylæ. According to fable, it was so called from Amphictyon, son of Deucalion, its supposed founder. (Greek, amphictionës, dwellers round about.)