confederate vs confederacy

confederate and confederacy both are nouns.

Word	Noun	Adjective	Verb	Adverb
confederate	Yes	Yes	Yes	No
confederacy	Yes	No	No	No

confederate (noun)	confederacy (noun)
a person who joins with another in carrying out some plan (especially an unethical or illegal plan)	a secret agreement between two or more people to perform an unlawful act
someone who assists in a plot	a union of political organizations
	a group of conspirators banded together to achieve some harmful or illegal purpose

confederate (adjective)	confederacy (adjective)
united in a confederacy or league

confederate (verb)	confederacy (verb)
form a group or unite
form a confederation with; of nations