prodigious vs prodigy

prodigious is not a noun while prodigy is a noun.

Word	Noun	Adjective	Verb	Adverb
prodigious	No	Yes	No	No
prodigy	Yes	No	No	No

prodigious (noun)	prodigy (noun)
	an impressive or wonderful example of a particular quality
	a sign of something about to happen
	an unusually gifted or intelligent (young) person; someone whose talents excite wonder and admiration

prodigious (adjective)	prodigy (adjective)
far beyond what is usual in magnitude or degree
so great in size or force or extent as to elicit awe
of momentous or ominous significance