aridness vs xerotes

aridness and xerotes both are nouns.

Word	Noun	Adjective	Verb	Adverb
aridness	Yes	No	No	No
xerotes	Yes	No	No	No

As nouns, xerotes is a hypernym of aridness; that is, xerotes is a word with a broader meaning than aridness:

aridness: a deficiency of moisture (especially when resulting from a permanent absence of rainfall)
xerotes: the condition of not containing or being covered by a liquid (especially water)

Other hypernyms of aridness include dryness, waterlessness.

aridness (noun)	xerotes (noun)
a deficiency of moisture (especially when resulting from a permanent absence of rainfall)	the condition of not containing or being covered by a liquid (especially water)