What is a Cacodaemon? Well, this is considered an evil spirit or demon. The term comes from the Latin word 'kakodaimonon' which technically means "evil spirit", and this may also have been influenced by the Greek word 'daimon' meaning "neutral spirit".
A cacodaemon is the opposite of a good spirit known as an agathodaemon (also known as the Greek god of vinyards, health and prosperity).
It is said that the cacodaemon once the figure that represented the twelfth house of the horoscope. It was driven by the belief that the twelfth house was ruled by a demonic spirit, though these assumptions were later dismissed.
Nobody knows the true shape of the cacodeamon as it is supposed to have the power of shape changing and appears to people in different forms.