AthanasiusmAncient Greek (Latinized) From the Greek name Ἀθανάσιος (Athanasios) meaning "immortal", from Greek ἀ (a), a negative prefix, combined with θάνατος (thanatos) meaning "death". Saint Athanasius was a 4th-century bishop of Alexandria who strongly opposed Arianism.
MoranafSlavic Mythology, Croatian From Old Slavic morŭ meaning "death, plague". In Slavic mythology this was the name of a goddess associated with winter and death.
MotmSemitic Mythology Means "death" in Ugaritic. This was the name of the Ugaritic god of death and the lord of the netherworld. He was a son of the supreme god El.
ThanatosmGreek Mythology Means "death" in Greek. This was the name of the Greek god of death who resided with Hades in the underworld.
VoldemortmLiterature Invented by author J.K. Rowling, apparently based on French vol de mort meaning "flight of death" or "theft of death". This is the name of the primary villain in Rowling's Harry Potter series of books, first released in 1997. The books explain that he created his name by anagramming his birth name Tom Marvolo Riddle into I am Lord Voldemort.