vigor vs vitality

vigor and vitality both are nouns.

Word	Noun	Adjective	Verb	Adverb
vigor	Yes	No	No	No
vitality	Yes	No	No	No

As nouns, vitality is a hyponym of vigor; that is, vitality is a word with a more specific, narrower meaning than vigor:

Other hyponyms of vigor include verve.

vigor (noun)	vitality (noun)
active strength of body or mind	the property of being able to survive and grow
an imaginative lively style (especially style of writing)	an energetic style
forceful exertion	(biology) a hypothetical force (not physical or chemical) once thought by Henri Bergson to cause the evolution and development of organisms
	a healthy capacity for vigorous activity