CONFEDERATION n. 2 definitions
The act of confederating; a league; a compact for mutual support; alliance, particulary of princes, nations, or states. The three princes enter into some strict league and confederation among themselves. Bacon. This was no less than a political confederation of the colonies of New England. Palfrey.
CONJURATION n. 3 definitions
sacred name, or in solemn manner; the act of binding by an oath; an earnest entreaty; adjuration. We charge you, in the name of God, take heed; . . . Under this conjuration speak, my lord. Shak.