mesmerizer vs hypnotiser

mesmerizer and hypnotiser both are nouns.

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

As nouns, mesmerizer and hypnotiser are synonyms defined as:

Other synonyms of mesmerizer include hypnotist, hypnotizer, mesmerist.

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