affixation vs affix

affixation and affix both are nouns.

Word	Noun	Adjective	Verb	Adverb
affixation	Yes	No	No	No
affix	Yes	No	Yes	No

affixation (noun)	affix (noun)
formation of a word by means of an affix	a linguistic element added to a word to produce an inflected or derived form
the act of attaching or affixing something
the result of adding an affix to a root word

affixation (verb)	affix (verb)
	stick or fasten to
	add to the very end
	attach or become attached to a stem word