cavity vs cavum

cavity and cavum both are nouns.

Word	Noun	Adjective	Verb	Adverb
cavity	Yes	No	No	No
cavum	Yes	No	No	No

As nouns, cavity and cavum are synonyms defined as:

Other synonyms of cavity include bodily cavity.

cavity (noun)	cavum (noun)
(anatomy) a natural hollow or sinus within the body	(anatomy) a natural hollow or sinus within the body
a sizeable hole (usually in the ground)
soft decayed area in a tooth; progressive decay can lead to the death of a tooth
space that is surrounded by something