federation vs federate

federation is a noun but federate is not a noun.

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

federation (noun)	federate (noun)
the act of constituting a political unity out of a number of separate states or colonies or provinces so that each member retains the management of its internal affairs
a union of political organizations
an organization formed by merging several groups or parties

federation (adjective)	federate (adjective)
	united under a central government

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