Hellhound

A supernatural being in the form of a dog. It first appears in Greek mythology, and then passes into Northern European folklore. The earliest mention of hellhounds is found in De nugis curialium (1190) Walter Map and the Welsh cycle of mythology The Four branches of the Mabinogi (ca. X—XII centuries).

Hellhound is the English spelling of the name of hellhounds.

Most often it is described as a huge black (sometimes with brown spots) dog with glowing red or yellow eyes, very strong and fast, having a ghostly or phantom essence and an unpleasant smell, and sometimes even the ability to speak.

They are often tasked with guarding the entrance to the world of the dead or performing other duties related to the afterlife or the supernatural world, such as hunting for lost souls and guarding supernatural things.

Sometimes it is used as a collective name for demonic dogs.