While fictioning tonight, I ran across this entry in The Columbia Guide to Standard American English:
aerie, aery, eyrie, eyry (n.)
All these are variant spellings of the word for an eagle’s nest (and figuratively any other high habitation). Pronunciations are just as numerous, and include AI-uhr-ee, EE-ree, UHR-ee, and ER-ee. Say it firmly in a loud voice while looking your listeners straight in the eye: most of them will be every bit as unsure as you are.