Pharmacist

google

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late Middle English (denoting the administration of drugs): from Old French farmacie, via medieval Latin from Greek pharmakeia ‘practice of the druggist’, based on pharmakon ‘drug’.

wiktionary

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pharmacy +‎  -ist

etymonline

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pharmacist (n.)

"a druggist, apothecary, one skilled in pharmacy," 1811; see pharmacy + -ist. Replaced obsolete pharmacian (1720). Pharmaceutist in this sense is attested from 1785. The Latin word was pharmacopola, the Greek pharmakopoles.