grieve vs suffer

grieve and suffer both are verbs.

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

As verbs, suffer is a hypernym of grieve; that is, suffer is a word with a broader meaning than grieve:

grieve (verb)	suffer (verb)
feel grief	be in pain
cause to feel sorrow	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