united vs federate

united and federate both are adjectives.

Word	Noun	Adjective	Verb	Adverb
united	No	Yes	No	No
federate	No	Yes	Yes	No

united (adjective)	federate (adjective)
characterized by unity; being or joined into a single entity	united under a central government
of or relating to two people who are married to each other
involving the joint activity of two or more

united (verb)	federate (verb)
	unite on a federal basis or band together as a league
	enter into a league for a common purpose