germ vs germy

germ is a noun but germy is not a noun.

Word	Noun	Adjective	Verb	Adverb
germ	Yes	No	No	No
germy	No	Yes	No	No

germ (noun)	germy (noun)
a minute life form (especially a disease-causing bacterium); the term is not in technical use
a small apparently simple structure (as a fertilized egg) from which new tissue can develop into a complete organism
anything that provides inspiration for later work

germ (adjective)	germy (adjective)
	full of germs or pathological microorganisms