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c.1600, from Italian caffe, from Turkish kahveh, from Arabic qahwah "coffee," said originally to have meant "wine," but perhaps rather from Kaffa region of Ethiopia, a home of the plant (coffee in Kaffa is called buno, which was borrowed into Arabic as bunn "raw coffee"). Much initial diversity of spelling, including chaoua.
Yemen was the first great coffee exporter and to protect its trade decreed that no living plant could leave the country. In 16c., a Muslim pilgrim brought some coffee beans from Yemen and raised them in India. Appeared in Europe (from Arabia) c.1515-1519. Introduced to England by 1650, and by 1675 the country had more than 3,000 coffee houses. Coffee plantations established in Brazil 1727. Meaning "a light meal at which coffee is served" is from 1774. Coffee break attested from 1952, at first often in glossy magazine advertisements by the Pan-American Coffee Bureau. Coffee pot from 1705.
Did you drink a cup of coffee on company time this morning? Chances are that you did--for the midmorning coffee break is rapidly becoming a standard fixture in American offices and factories. ["The Kiplinger Magazine," March 1952]