favor vs relic

favor and relic both are nouns.

Word	Noun	Adjective	Verb	Adverb
favor	Yes	No	Yes	No
relic	Yes	No	No	No

As nouns, relic is a hypernym of favor; that is, relic is a word with a broader meaning than favor:

Other hypernyms of favor include keepsake, souvenir, token.

favor (noun)	relic (noun)
an act of gracious kindness	an antiquity that has survived from the distant past
souvenir consisting of a small gift given to a guest at a party	something of sentimental value
an advantage to the benefit of someone or something
an inclination to approve
a feeling of favorable regard