Honoring the brother of the Greek god Thanatos, this alternative medical practice got its name in the mid-19th century

The Final Jeopardy clue for Tuesday, June 9, 2026, appeared in the category “Medicine” and read: “Honoring the brother of the Greek god Thanatos, this alternative medical practice got its name in the mid-19th century.” The clue points to a practice whose name comes from Hypnos, the Greek god of sleep and the brother of Thanatos, the god of death.

What Is Hypnotism?

The correct response is hypnotism. The name comes from Hypnos, the Greek personification of sleep. In Greek mythology, Hypnos was the brother of Thanatos, who represented death, making the mythological reference the key to solving the clue.

The word “hypnotism” became associated with a trance-like state that seemed to resemble sleep. Although modern understanding of hypnosis does not treat it as ordinary sleep, the original name reflected how the condition appeared to observers in the 19th century.

The Mid-19th Century Origin of the Term

The term “hypnotism” is commonly linked to Scottish surgeon James Braid, who helped move the subject away from earlier ideas about “animal magnetism” and mesmerism. Braid studied the state produced through focused attention and suggestion, and he used terminology connected to sleep because of the outward appearance of the condition.

Braid’s work helped give the practice a more medical and psychological framing. Instead of treating it as a mysterious magnetic force, he argued that the phenomenon could be understood through the nervous system, attention, and mental concentration.

The Connection to Hypnos and Thanatos

The clue’s wording relies on Greek mythology. Thanatos was the god or personification of death, while Hypnos was his brother and represented sleep. Since “hypnotism” is built from the name Hypnos, the clue uses the family relationship to lead to the answer.

This is also why the clue says the practice “honored” the brother of Thanatos. It does not mean the practice was religious or mythological in nature. It means the name was derived from the mythological figure associated with sleep.

Hypnotism as an Alternative Medical Practice

Hypnotism has been used in different medical and therapeutic settings, including pain control, anxiety management, habit treatment, and psychological therapy. It has also existed outside mainstream medicine, especially in stage performances and alternative healing traditions.

Because of that mixed history, it fits the category’s wording as an “alternative medical practice.” While hypnosis is studied in clinical contexts today, its public image has long moved between medicine, psychology, entertainment, and popular belief.

Why This Final Jeopardy Clue Works

This clue works because it asks contestants to connect medicine with mythology and word origins. The mention of Thanatos points toward Greek myth, and knowing that his brother was Hypnos leads directly to hypnotism.

The correct response, hypnotism, fits every part of the clue. It is a medical and therapeutic practice with alternative associations, its name dates to the mid-19th century, and its root comes from Hypnos, the Greek figure linked with sleep.