Plural of formulary; collections of set formulas, recipes, or prescribed methods, especially medical lists of approved medications.
From formulary (Late Latin formularium, 'collection of formulas') + -ies (plural suffix). Medieval monasteries kept formularies recording medicines and procedures.
Formularies are still crucial in modern hospitals—they're official lists of drugs approved for use, inherited directly from medieval monastery practice of recording remedies, making this word a 1,000-year-old connection between monks and modern medicine.
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