fox vs mystify

fox is a noun but mystify is not a noun.

Word	Noun	Adjective	Verb	Adverb
fox	Yes	No	Yes	No
mystify	No	No	Yes	No

As verbs, mystify is a hyponym of fox; that is, mystify is a word with a more specific, narrower meaning than fox:

fox (noun)	mystify (noun)
alert carnivorous mammal with pointed muzzle and ears and a bushy tail; most are predators that do not hunt in packs
a shifty deceptive person
the grey or reddish-brown fur of a fox

fox (verb)	mystify (verb)
become discolored with, or as if with, mildew spots	make mysterious
be confusing or perplexing to; cause to be unable to think clearly	be a mystery or bewildering to
deceive somebody