thanatos

noun

1. an ancient Greek personification of death.
2. Psychoanalysis. (usually lowercase) the death instinct, especially as expressed in violent aggression.

noun

1. the Greek personification of death: son of Nyx, goddess of nightRoman counterpart: Mors
2. the name chosen by Freud to represent a universal death instinctCompare Eros (def. 2)

n.“death instinct,” 1935, in Freudian psychology, from Greek thanatos (see thanatology). n.

1. death instinct