superannuation vs superannuate

superannuation is a noun but superannuate is not a noun.

Word	Noun	Adjective	Verb	Adverb
superannuation	Yes	No	No	No
superannuate	No	No	Yes	No

superannuation (noun)	superannuate (noun)
the act of discharging someone because of age (especially to cause someone to retire from service on a pension)
the property of being out of date and not current
a monthly payment made to someone who is retired from work

superannuation (verb)	superannuate (verb)
	retire or become ineligible because of old age or infirmity
	become obsolete
	declare to be obsolete
	retire and pension (someone) because of age or physical inability