bone vs bony

bone is a noun but bony is not a noun.

Word	Noun	Adjective	Verb	Adverb
bone	Yes	Yes	Yes	No
bony	No	Yes	No	No

bone (noun)	bony (noun)
a shade of white the color of bleached bones
rigid connective tissue that makes up the skeleton of vertebrates
the porous calcified substance from which bones are made

bone (adjective)	bony (adjective)
consisting of or made up of bone	having bones especially many or prominent bones
	composed of or containing bone
	being very thin

bone (verb)	bony (verb)
remove the bones from
study intensively, as before an exam