Amphictyonic Word Meaning

late 17th century; earliest use found in Walter Charleton (1620–1707), physician and natural philosopher. From post-classical Latin Amphictyonicus from ancient Greek Ἀμϕικτυονικός (also Ἀμϕικτιονικός) belonging to the Amphictyons or their League from Ἀμϕικτύονες + -ικός

Of, relating to, or of the nature of an Amphictyony; belonging to an Amphictyony. Chiefly in "Amphictyonic council", "Amphictyonic League".