aery

nouns

the lofty nest of a bird of prey (such as a hawk or eagle)
aerie, aery, eyrie, eyry
any habitation at a high altitude
aerie, aery, eyrie, eyry

adjectives

characterized by lightness and insubstantiality; as impalpable or intangible as air
"figures light and aeriform come unlooked for and melt away"- Thomas Carlyle; "aerial fancies"; "an airy apparition"; "physical rather than ethereal forms"
aerial, aeriform, aery, airy, ethereal