grivet vs guenon

grivet and guenon both are nouns.

Word	Noun	Adjective	Verb	Adverb
grivet	Yes	No	No	No
guenon	Yes	No	No	No

As nouns, guenon is a hypernym of grivet; that is, guenon is a word with a broader meaning than grivet:

grivet: white and olive green East African monkey with long white tufts of hair beside the face
guenon: small slender African monkey having long hind limbs and tail and long hair around the face

Other hypernyms of grivet include guenon monkey.

grivet (noun)	guenon (noun)
white and olive green East African monkey with long white tufts of hair beside the face	small slender African monkey having long hind limbs and tail and long hair around the face