lower vs descend

lower is a noun but descend is not a noun.

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

lower (noun)	descend (noun)
the lower of two berths

lower (adjective)	descend (adjective)
the bottom one of two

lower (verb)	descend (verb)
make lower or quieter	come as if by falling
set lower	move downward and lower, but not necessarily all the way
cause to drop or sink	do something that one considers to be below one's dignity
move something or somebody to a lower position	come from; be connected by a relationship of blood, for example
look angry or sullen, wrinkle one's forehead, as if to signal disapproval