rheumy vs rheumatic

rheumy is not a noun while rheumatic is a noun.

Word	Noun	Adjective	Verb	Adverb
rheumy	No	Yes	No	No
rheumatic	Yes	Yes	No	No

As adjectives, rheumy and rheumatic are synonyms defined as:

Other synonyms of rheumy include arthritic, creaky, rheumatoid.

rheumy (noun)	rheumatic (noun)
	a person suffering with rheumatism

rheumy (adjective)	rheumatic (adjective)
of or pertaining to arthritis	of or pertaining to arthritis
moist, damp, wet (especially of air)