thirstiness vs desire

thirstiness and desire both are nouns.

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

As nouns, desire is a hypernym of thirstiness; that is, desire is a word with a broader meaning than thirstiness:

thirstiness (noun)	desire (noun)
strong desire for something (not food or drink)	an inclination to want things
a physiological need to drink	the feeling that accompanies an unsatisfied state
a deficiency of moisture (especially when resulting from a permanent absence of rainfall)	something that is desired

thirstiness (verb)	desire (verb)
	feel or have a desire for; want strongly
	express a desire for
	expect and wish