The word "pharmacognosy" is derived from the Greek words φάρμακον pharmakon (drug), and γνῶσις gnosis or "knowledge". The term pharmacognosy was used for the first time by the Austrian physician Schmidt in 1811 and 1815 by Crr. Anotheus Seydler in a work titled Analecta Pharmacognostica..
Pharmacognosy is the study of medicines derived from natural sources. The American Society of Pharmacognosy defines pharmacognosy as "the study of the physical, chemical, biochemical and biological properties of drugs, drug substances or potential drugs or drug substances of natural origin as well as the search for new drugs from natural sources.Originally—during the 19th century and the beginning of the 20th century—"pharmacognosy" was used to define the branch ofmedicine or commodity sciences (Warenkunde in German) which deals with drugs in their crude, or unprepared, form
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