Darkfellow
Darkfellow is a term that appears in the context of J.R.R. Tolkien's legendarium, notably in the poem "The Lay of Leithian" as published in The Silmarillion. It is used as an epithet for a specific character, Morgoth Bauglir, the first Dark Lord. The term itself is a compound of "dark" and "fellow," suggesting a malevolent or sinister companion or associate.
In the narrative, Darkfellow is presented as a powerful and ancient evil being who wields great power