superintendent vs superintend

superintendent is a noun but superintend is not a noun.

Word	Noun	Adjective	Verb	Adverb
superintendent	Yes	No	No	No
superintend	No	No	Yes	No

superintendent (noun)	superintend (noun)
a person who directs and manages an organization
a caretaker for an apartment house; represents the owner as janitor and rent collector

superintendent (verb)	superintend (verb)
	watch and direct