Ose

Ose, also known as Osé, Oze, Oso or Voso, is the 57th demonic spirit of the Ars Goetia and a great president of Hell. He first appears as a leopard, but after some time will take the form of a man. He gives skill in all liberal sciences and true answers concerning divine and secret things. He can change any men into any shape the exorcist may desire, and the one that is changed will not know it.

He can also put them in a state of insanity in which the victim will believe that their identity has changed. The delusion, however, will only last for an hour. Ose governs over 30 legions of spirits.

His name seems to derive from Latin "os," mouth, language, or "osor," that who abhors.