mesmerizer vs mesmerist

mesmerizer and mesmerist both are nouns.

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

As nouns, mesmerizer and mesmerist are synonyms defined as:

Other synonyms of mesmerizer include hypnotiser, hypnotist, hypnotizer.

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