hypnotiser vs mesmerist

hypnotiser and mesmerist both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypnotiser	Yes	No	No	No
mesmerist	Yes	No	No	No

As nouns, hypnotiser and mesmerist are synonyms defined as:

Other synonyms of hypnotiser include hypnotist, hypnotizer, mesmerizer.

hypnotiser (noun)	mesmerist (noun)
a person who induces hypnosis	a person who induces hypnosis