Alkaloid use of Ephedra and opium poppies. Also, coca leaves have been used by South American Indians since ancient times. Extracts from plants containing toxic alkaloids, such as aconitine and tubocurarine, were used since antiquity for poisoning arrows. Studies of alkaloids began in the 19th century. In 1804, the German chemist Friedrich Sertürner isolated from opium a "soporific principle" (), which he called "morphium" in honor of Morpheus, the Greek god of dreams; in German and some other Central-European languages, this is still the name of the drug. The term "morphine", used in English and French, was given by the French
Greek name to as "María Ioánnou Papadopoúlou" and "Andréas Ioánnou Papadópoulos". If Mary then marries George Demetriádes, she may retain her original name or choose to be called "María Geōrgíou Demetriádou". If she is widowed, she will revert to her father's patronymic but retain her husband's surname to become "María Ioánnou Demetriádou". [[Category:Names by culture]] [[Category:Greek given names|Given names]] [[Category:Greek-language surnames| Surnames]] [[Category:Greek culture|Name]] [[Category:Greek-language given names]] Greek name In the modern world, personal names among people of Greek language and culture generally consist of a given name, a patronymic and a family name. Ancient Greeks generally had a single name, often