Wikipedia
Kormos
Kormos or Kormoz ( Turkish: Körmöz or Körmös) is the spiritual devil of the Altaic people. Kormos means in Turkic languages "does not see" or "blind."
It is an evil and impure spirit and son of Kayra. It was also described as a black entity living in the Underworld. This spirit is associated with ancestral spirits and follows a man throughout his lifetime, recording all of his deeds. There are different kinds of it: Yor, Alban, Cahık, Ozor, and more.