mesmerist vs mesmerizer

mesmerist and mesmerizer both are nouns.

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

As nouns, mesmerist and mesmerizer are synonyms defined as:

Other synonyms of mesmerist include hypnotiser, hypnotist, hypnotizer.

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