cyma vs cymatium

cyma and cymatium both are nouns.

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

As nouns, cyma and cymatium are synonyms defined as:

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

cyma (noun)	cymatium (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)