Cacodaemon (AKA cacodemon) is an evil spirit or demon. The term comes from the Latin word kakodaimonon (evil spirit), and may also have been influenced by the Greek word daimon (neutral spirit).
A cacodemon is the opposite of a good spirit known as an eudaemon or agathodeamon (Agathodeamon is also known as the Greek god of vineyards, health and prosperity).
There was a time when the twelfth house of horoscope figures was named Cacodemon. It was driven by the belief that the twelfth house was ruled by a demonic spirit, though these assumptions were later dismissed.
It is sometimes said that cacodemon have the power of shape changing, so nobody knows its original form.
In popular culture, Cacodemon is one of the characters of the Doom game series. It is described as an organic flying demon which attacks with its teeth and shoots fireballs. It has many eyes and multiple rows of teeth. It is an average-rated adversary in this game and its attacks are easily dodged.