subsume vs subsumption

subsume is not a noun while subsumption is a noun.

Word	Noun	Adjective	Verb	Adverb
subsume	No	No	Yes	No
subsumption	Yes	No	No	No

subsume (noun)	subsumption (noun)
	incorporating something under a more general category
	the premise of a syllogism that contains the minor term (which is the subject of the conclusion)

subsume (verb)	subsumption (verb)
consider (an instance of something) as part of a general rule or principle
contain or include