desire vs ask for

desire is a noun but ask for is not a noun.

Word	Noun	Adjective	Verb	Adverb
desire	Yes	No	Yes	No
ask for	No	No	Yes	No

As verbs, ask for is a hypernym of desire; that is, ask for is a word with a broader meaning than desire:

Other hypernyms of desire include bespeak, call for, quest, request.

desire (noun)	ask for (noun)
an inclination to want things
the feeling that accompanies an unsatisfied state
something that is desired

desire (verb)	ask for (verb)
feel or have a desire for; want strongly	express the need or desire for
express a desire for	increase the likelihood of
expect and wish