affixation vs morphology

affixation and morphology both are nouns.

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

As nouns, morphology is a hypernym of affixation; that is, morphology is a word with a broader meaning than affixation:

Other hypernyms of affixation include sound structure, syllable structure, word structure.

affixation (noun)	morphology (noun)
formation of a word by means of an affix	the branch of biology that deals with the structure of animals and plants
the act of attaching or affixing something	studies of the rules for forming admissible words
the result of adding an affix to a root word	the admissible arrangement of sounds in words
	the branch of geology that studies the characteristics and configuration and evolution of rocks and land forms