collate vs collation

collate is not a noun while collation is a noun.

Word	Noun	Adjective	Verb	Adverb
collate	No	No	Yes	No
collation	Yes	No	No	No

collate (noun)	collation (noun)
	careful examination and comparison to note points of disagreement
	assembling in proper numerical or logical sequence
	a light informal meal

collate (verb)	collation (verb)
compare critically; of texts
to assemble in proper sequence