aerie

noun

1. the nest of an eagle or other bird of prey that builds in a high place
2. a house or stronghold on a high place
3. Obsolete the young of an eagle, hawk, etc., in the nest

Etymology: ME eire, aire < OFr aire < ML aeria, area, prob. ult. < L ager, field (see acre), but sp. & meaning infl. by L aer, air & ME ei, egg