pastern vs bone

pastern and bone both are nouns.

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

As nouns, bone is a hypernym of pastern; that is, bone is a word with a broader meaning than pastern:

Other hypernyms of pastern include os.

pastern (noun)	bone (noun)
the part between the fetlock and the hoof	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

pastern (adjective)	bone (adjective)
	consisting of or made up of bone

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