4 letters · 7 points in Scrabble
noun the lofty nest of a bird of prey (such as a hawk or eagle)
noun any habitation at a high altitude
adjective characterized by lightness and insubstantiality; as impalpable or intangible as air; - Thomas Carlyle
originFrom Middle English aery, from Latin āerius.
Etymology from Wiktionary, CC BY-SA 3.0