desire vs envy

desire and envy both are nouns.

Word	Noun	Adjective	Verb	Adverb
desire	Yes	No	Yes	No
envy	Yes	No	Yes	No

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

desire (noun)	envy (noun)
an inclination to want things	spite and resentment at seeing the success of another (personified as one of the deadly sins)
the feeling that accompanies an unsatisfied state	a feeling of grudging admiration and desire to have something that is possessed by another
something that is desired

desire (verb)	envy (verb)
feel or have a desire for; want strongly	be envious of; set one's heart on
express a desire for	feel envious towards; admire enviously
expect and wish