descent vs descend

descent is a noun but descend is not a noun.

Word	Noun	Adjective	Verb	Adverb
descent	Yes	No	No	No
descend	No	No	Yes	No

descent (noun)	descend (noun)
the act of changing your location in a downward direction
properties attributable to your ancestry
a movement downward
the hereditary derivation of an individual
a downward slope or bend
the kinship relation between an individual and the individual's progenitors

descent (verb)	descend (verb)
	come as if by falling
	move downward and lower, but not necessarily all the way
	do something that one considers to be below one's dignity
	come from; be connected by a relationship of blood, for example