want vs begrudge

want is a noun but begrudge is not a noun.

Word	Noun	Adjective	Verb	Adverb
want	Yes	No	Yes	No
begrudge	No	No	Yes	No

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

want (noun)	begrudge (noun)
a specific feeling of desire
anything that is necessary but lacking
a state of extreme poverty
the state of needing something that is absent or unavailable

want (verb)	begrudge (verb)
wish or demand the presence of	wish ill or allow unwillingly
have need of	be envious of; set one's heart on
hunt or look for; want for a particular reason
feel or have a desire for; want strongly
be without, lack; be deficient in