brook vs suffer

brook is a noun but suffer is not a noun.

Word	Noun	Adjective	Verb	Adverb
brook	Yes	No	Yes	No
suffer	No	No	Yes	No

As verbs, brook and suffer are synonyms defined as:

Other synonyms of brook include abide, bear, digest, endure, put up, stand, stick out, stomach, support, tolerate.

brook (noun)	suffer (noun)
a natural stream of water smaller than a river (and often a tributary of a river)

brook (verb)	suffer (verb)
put up with something or somebody unpleasant	be in pain
	undergo (as of injuries and illnesses)
	feel unwell or uncomfortable
	get worse in quality
	be set at a disadvantage
	put up with something or somebody unpleasant
	experience (emotional) pain
	feel physical pain
	undergo or be subjected to
	undergo or suffer
	be given to