The OP led me to The Book of the Goetia of Solomon the King [sorry I keep editing this to get the exact title for what I have correct] by Aleister Crowley and Samuel Liddell MacGregor Mather.
Amy or Amii (also Auns, Hanar, Hanni) is a Goetic demon described in the Lesser Key of Solomon (as the fifty-eighth spirit), the Dictionnaire Infernal, in Thomas Rudd’s version (as Auns, again fifty-eighth), the Pseudomonarchia Daemonum (the sixtieth spirit), and (as Hanni) in the Munich Manual of Demonic Magic as a President, appearing initially as a flame before turning to a human form. He is claimed to teach astronomy and liberal arts, give familiars, incite positive reactions from rulers, and (according to all sources except the Munich Manual) reveal treasures. According to all sources, he rules over thirty six legions of demons. According to Johann Weyer, he was of both the order of angels and potestates (powers), and holds the futile hope of returning to the seventh heaven after twelve centuries. According to Rudd, Amii is opposed by the Shem HaMephorash angel Ieialel.