cymatium vs cyma

cymatium and cyma both are nouns.

Word	Noun	Adjective	Verb	Adverb
cymatium	Yes	No	No	No
cyma	Yes	No	No	No

As nouns, cymatium and cyma are synonyms defined as:

cymatium and cyma: (architecture) a molding for a cornice; in profile it is shaped like an S (partly concave and partly convex)

cymatium (noun)	cyma (noun)
(architecture) a molding for a cornice; in profile it is shaped like an S (partly concave and partly convex)	(architecture) a molding for a cornice; in profile it is shaped like an S (partly concave and partly convex)