aery vs ethereal

aery is a noun but ethereal is not a noun.

Word	Noun	Adjective	Verb	Adverb
aery	Yes	Yes	No	No
ethereal	No	Yes	No	No

As adjectives, aery and ethereal are synonyms defined as:

aery and ethereal: characterized by lightness and insubstantiality; as impalpable or intangible as air

Other synonyms of aery include aerial, aeriform, airy.

aery (noun)	ethereal (noun)
any habitation at a high altitude
the lofty nest of a bird of prey (such as a hawk or eagle)

aery (adjective)	ethereal (adjective)
characterized by lightness and insubstantiality; as impalpable or intangible as air	of or containing or dissolved in ether
	characterized by unusual lightness and delicacy
	of heaven or the spirit
	characterized by lightness and insubstantiality; as impalpable or intangible as air