Also in 1643f, the Solemn League and Covenant established a Confederacy between England and Scotland and Ireland. That in turn rooted in the National Covenant of 1580 and later — which re-affirmed the confederated solidarity of the nation in all of its classes and
families.
Also Ancient Britain was a confederacy…
Also Ancient Ireland was a confederacy…
Going back still further, around B.C. 1900 we read that certain leaders in Canaan “were confederate with Abram” in a defence pact — in order to ward off attackers. Indeed, also Adam and his descendants were to be confederates linked to God and with one another against Satan.