antiquity vs stela

antiquity and stela both are nouns.

Word	Noun	Adjective	Verb	Adverb
antiquity	Yes	No	No	No
stela	Yes	No	No	No

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

Other hyponyms of antiquity include antique, relic, Roman building, stele.

antiquity (noun)	stela (noun)
an artifact surviving from the past	an ancient upright stone slab bearing markings
extreme oldness
the historic period preceding the Middle Ages in Europe