The story
From pharmacy (“the art of preparing drugs, a drug, especially laxatives”) + -ist.
Etymology from Wiktionary, CC BY-SA 4.0.
pharmacist
Today it means: A health professional who controls, formulates, preserves, and dispenses medications and provides medical advice and counseling on how medicines should be used in order to achieve maximum benefit, and minimal side effects in order to avoid drug interactions. Full definition →