ZAA is the twenty-seventh of the thirty Aethyrs, or Airs, of the Enochian system, the thirty spiritual regions delivered to the mathematician John Dee and the scryer Edward Kelley in 1584, and named in the record Dee compiled from those sessions. Its three-letter name, ZAA, was received letter by letter through Kelley's scrying.
Place in the system
Each Aethyr is said to contain three Governors among whom the ninety-one Parts of the Earth are divided.
The thirty Aethyrs are the raw gift of the Dee-Kelley sessions; the elaborate visionary content attached to them in modern practice belongs to a later layer, above all Aleister Crowley's The Vision and the Voice, his record of scrying all thirty Aethyrs in 1900 and 1909. The Aethyr is described here as an element of that documented historical tradition, studied as such, its entities not reified.
The three Governors
ZAA's three Parts are Saziami, ruling a Part called Oacidi with no known referent, under King Ziracah of the tribe of Reuben; Mathula, ruling Babylon, under King Zarnaah of the tribe of Manasseh; and Krpanib, ruling Median, evidently Media, assigned a Part three Aethyrs earlier, under King Gebabal of the tribe of Asher. Babylon carries an obvious weight in material framed throughout in scriptural terms, since the whole Enochian enterprise was presented to Dee as the recovery of the language spoken by Adam and used by Enoch, the context in which a name of this kind would have been read.