worthful vs worthy

worthful is not a noun while worthy is a noun.

Word	Noun	Adjective	Verb	Adverb
worthful	No	Yes	No	No
worthy	Yes	Yes	No	No

worthful (noun)	worthy (noun)
	an important, honorable person (word is often used humorously)

worthful (adjective)	worthy (adjective)
having worth or merit or value	having worth or merit or value; being honorable or admirable
	worthy of being chosen especially as a spouse
	having qualities or abilities that merit recognition in some way