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soap opera [soap opera 词源字典]: soap opera: [20] The original soap operas were a radio phenomenon, in 1930s America. Serial dramas dealing with humdrum-butoccasionally- melodramatic domestic life were as common then as they are on television now, and several of those on the commercial US networks were sponsored by soap manufacturers. A writer on the Christian Century in 1938 said ‘These fifteen-minute tragedies…I call the “soap tragedies”…because it is by the grace of soap I am allowed to shed tears for these characters who suffer so much from life’.

The soap connection soon linked up with horse opera, a mildly derisive term for a Western movie that had been around since the 1920s, to produce soap opera (a later coinage on the same model was space opera). The abbreviated version soap is recorded as early as 1943.
[soap opera etymology, soap opera origin, 英语词源]
lyceum (n.): 1580s, Latin form of Greek lykeion, name of a grove or garden with covered walks near Athens where Aristotle taught, from neuter of Lykeios "wolf-slayer," an epithet of Apollo, whose temple was nearby, from lykos "wolf." Hence lycée, name given in France to state-run secondary schools. In England, early 19c., lyceum was the name taken by a number of literary societies; in U.S., after c. 1820, it was the name of institutes that sponsored popular lectures in science and literature.
opera (n.): "a drama sung" [Klein], 1640s, from Italian opera, literally "a work, labor, composition," from Latin opera "work, effort" (Latin plural regarded as feminine singular), secondary (abstract) noun from operari "to work," from opus (genitive operis) "a work" (see opus). Defined in "Elson's Music Dictionary" as, "a form of musical composition evolved shortly before 1600, by some enthusiastic Florentine amateurs who sought to bring back the Greek plays to the modern stage."
No good opera plot can be sensible. ... People do not sing when they are feeling sensible. [W.H. Auden, 1961]
As a branch of dramatic art, it is attested from 1759. First record of opera glass "small binoculars for use at the theater" is from 1738. Soap opera is first recorded 1939, as a disparaging reference to daytime radio dramas sponsored by soap manufacturers.
sponsor (v.): 1884, "to favor or support," from sponsor (n.). Commercial broadcasting sense is from 1931. Related: Sponsored; sponsoring.
Thermos (n.): trademark registered in Britain 1907, invented by Sir James Dewar (patented 1904 but not named then), from Greek thermos "hot" (see thermal). Dewar built the first one in 1892, but it was first manufactured commercially in Germany in 1904, when two glass blowers formed Thermos GmbH. Supposedly the company sponsored a contest to name the thing, and a Munich resident won with a submission of Thermos.
walk (n.): c. 1200, "a tossing, rolling;" mid-13c., "an act of walking, a going on foot;" late 14c., "a stroll," also "a path, a walkway;" from walk (v.). The meaning "broad path in a garden" is from 1530s. Meaning "particular manner of walking" is from 1650s. Meaning "manner of action, way of living" is from 1580s; hence walk of life (1733). Meaning "range or sphere of activity" is from 1759. Sports sense of "base on balls" is recorded from 1905; to win in a walk (1854) is from horse racing (see walk-over). As a type of sponsored group trek as a fund-raising event, by 1971 (walk-a-thon is from 1963).