amphictyonic

[ am-fik-tee-on-ik ]

/ æmˌfɪk tiˈɒn ɪk /

of or relating to an amphictyon or an amphictyony.

Origin of amphictyonic

From the Greek word amphiktyonikós, dating back to 1745–55. See amphictyon, -ic

We should almost as soon expect to see an amphictyonic council to regulate the affairs of the whole globe.

The United States and Latin America |John Holladay Latan
And that federalism was not ethically higher than the spirit of the ancient Amphictyonic oath, preserved by Æschines.

The Evolution of States |J. M. Robertson
The Amphictyonic assembly held one of its half-yearly meetings near the temple of Pytho, the other at Thermopylæ.

The Great Events by Famous Historians, Vol. 1 |Various
And on this account the Scyrians were formerly condemned by the Amphictyonic council.

The Rights of War and Peace |Hugo Grotius

It seems that this use of the name (generally employed of the deputies to the Amphictyonic council) was peculiarly Dorian.

The Histories of Polybius, Vol. I (of 2) |Polybius