mesmeric

The word 'mesmeric' is an eponym, derived entirely from the surname of Franz Anton Mesmer, an 18th-century German physician who developed a theory of "animal magnetism." The suffix '-ic,' of Greek and Latin origin, is a standard adjectival ending meaning "pertaining to." Therefore, the literal construction means "pertaining to Mesmer." Over time, as Mesmer's practices were discredited as a scientific theory but his name remained associated with inducing trance-like states, the meaning evolved. It now describes anything that exerts a compelling, fascinating, or hypnotic influence, capturing the abstract sense of being spellbound, much like Mesmer's subjects were said to be.

Structure: mesmer (name) + ic (adjective-forming suffix) mesmer (from Franz Mesmer, surname of German physician, ultimately of uncertain Germanic origin) + ic (from Latin -icus, from Greek -ikos, forming adjectives meaning "of, pertaining to, or in the manner of").