camerayoudaoicibaDictYouDict[camera 词源字典]
camera: [18] Latin camera originally meant ‘vaulted room’ (a sense preserved in the Radcliffe Camera, an 18th-century building housing part of Oxford University library, which has a vaulted roof). It came from Greek kamárā ‘vault, arch’, which is ultimately related to English chimney. In due course the meaning ‘vaulted room’ became weakened to simply ‘room’, which reached English, via Old French chambre, as chamber, and is preserved in the legal Latin phrase in camera ‘privately, in judge’s chambers’.

In the 17th century, an optical instrument was invented consisting of a small closed box with a lens fixed in one side which produced an image of external objects on the inside of the box. The same effect could be got in a small darkened room, and so the device was called a camera obscura ‘dark chamber’. When the new science of photography developed in the 19th century, using the basic principle of the camera obscura, camera was applied to the picture-forming box.

=> chamber, chimney[camera etymology, camera origin, 英语词源]
divanyoudaoicibaDictYouDict
divan: [16] The word divan has a long and spectacularly variegated semantic history. It started out as Persian dēvān, which originally meant ‘small book’. This came to be used specifically for ‘account book’, and eventually for ‘accountant’s office’. From this its application broadened out to cover various official chambers and the bodies which occupied them, such as tax offices, customs collectors, courts, and councils of state.

And finally it developed to ‘long seat’, of the sort which lined the walls of such Oriental chambers. The word carried these meanings with it via Arabic dīwān and Turkish divān into the European languages, and English acquired most of them as a package deal from French divan or Italian devano (it did not, however, include the ‘customs’ sense which, via the Turkish variant duwan, survives in French douane, Italian dogana, Spanish aduana, etc).

The 19th-century sense ‘smoking lounge’ seems to be an exclusively European development.

bicameral (adj.)youdaoicibaDictYouDict
"having two chambers," 1832, from bi- "two" (see bi-) + Late Latin camera "chamber" (see camera) + -al (1).
divan (n.)youdaoicibaDictYouDict
1580s, "Oriental council of state," from Turkish divan, from Arabic diwan, from Persian devan "bundle of written sheets, small book, collection of poems" (as in the "Divan i-Hafiz"), related to debir "writer."

Sense evolved through "book of accounts," to "office of accounts," "custom house," "council chamber," then to "long, cushioned seat," such as are found along the walls in Middle Eastern council chambers (see couch). The sofa/couch sense was taken into English 1702; the "book of poems" sense in 1823.
eczema (n.)youdaoicibaDictYouDict
1753, from Greek ekzema, literally "something thrown out by heat," from ekzein "to boil over, break out," from ek "out" (see ex-) + zein "to boil," from PIE root *yes- "to boil, foam, bubble" (see yeast). Said to have been the name given by ancient physicians to "any fiery pustule on the skin" [Chambers' "Cyclopaedia"].
episcopal (adj.)youdaoicibaDictYouDict
mid-15c., "belonging to or characteristic of bishops," from Middle French épiscopal (14c.), from Late Latin episcopalis, from Latin episcopus "an overseer" (see bishop). Reference to a church governed by bishops is 1752. With a capital E-, the ordinary designation of the Anglican church in the U.S. and Scotland, so called because its bishops are superior to other clergy. Chambers' "Cyclopaedia" (1751) has episcopicide "the murdering of a bishop."
frangipani (n.)youdaoicibaDictYouDict
common name of a type of flowering shrub from the West Indies, also fdrangipane, 1670s, for a perfume that had its odor, from French frangipane (16c.), said to be from Frangipani, the family name of the Italian inventor.
FRANGIPANI, an illustrious and powerful Roman House, which traces its origin to the 7th c., and attained the summit of its glory in the 11th and 12th centuries. ... The origin of the name Frangipani is attributed to the family's benevolent distribution of bread in time of famine. ["Chambers's Encyclopædia," 1868]
Frangipane as a type of pastry is from 1858.
jackdaw (n.)youdaoicibaDictYouDict
1540s, the common name of the daw (Corvus monedula), "which frequents church towers, old buildings, etc.; noted for its loquacity and thievish propensities" [OED]. See jack (n.) + daw.
In modern times, parrots are almost the only birds that have the gift of speech, though connoisseurs are not ignorant that starlings and jackdaws have good abilities in that way, when properly educated. ["Chambers' Home Book and Pocket Miscellany," 1853]
ketchup (n.)youdaoicibaDictYouDict
1711, said to be from Malay kichap, but probably not original to Malay. It might have come from Chinese koechiap "brine of fish," which, if authentic, perhaps is from the Chinese community in northern Vietnam [Terrien de Lacouperie, in "Babylonian and Oriental Record," 1889, 1890]. Catsup (earlier catchup, 1680s) is a failed attempt at Englishing, still in use in U.S., influenced by cat and sup.

Originally a fish sauce, the word came to be used in English for a wide variety of spiced gravies and sauces; "Apicius Redivivus; or, the Cook's Oracle," by William Kitchiner, London, 1817, devotes 7 pages to recipes for different types of catsup (his book has 1 spelling of ketchup, 72 of catsup), including walnut, mushroom, oyster, cockle and mussel, tomata, white (vinegar and anchovies figure in it), cucumber, and pudding catsup. Chambers's Encyclopaedia (1870) lists mushroom, walnut, and tomato ketchup as "the three most esteemed kinds." Tomato ketchup emerged c. 1800 in U.S. and predominated from early 20c.
lobby (n.)youdaoicibaDictYouDict
1530s, "cloister, covered walk," from Medieval Latin laubia, lobia "covered walk in a monastery," from a Germanic source (compare Old High German louba "hall, roof;" see lodge (n.)). Meaning "large entrance hall in a public building" is from 1590s. Political sense of "those who seek to influence legislation" is attested by 1790s in American English, in reference to the custom of influence-seekers gathering in large entrance-halls outside legislative chambers.
mutt (n.)youdaoicibaDictYouDict
1901, "stupid or foolish person," probably a shortening of muttonhead (1803) in the same sense; see mutton and compare meathead, etc. Mutt was used by 1898 of a dog, especially a stupid one, and perhaps this is the same word formed independently (muttonhead also was used of stupid animals), or else a separate word of unknown derivation. Wright's "English Dialect Dictionary" (1900) has "Mutton! used in scolding a dog, prob. in allusion to the offence of sheep-worrying."
"That dog ain't no mutt," McManus would say as he stood behind the bar opening oysters; "no an he ain't no rube! Say! he's in it all the time when Charley trims the steaks." [Robert W. Chambers, "The Haunts of Men," 1898]
Used by 1910 in dog fancier publications to refer to a non-purebred animal.
nelson (n.)youdaoicibaDictYouDict
type of wrestling hold, 1875, apparently from a proper or surname, but no one now knows whose.
Presently, Stubbs, the more skilful as well as the more powerful of the twain, seizes the luckless Jumper in a terrible gripe, known to the initiated as the Full Nelson. ["Lancashire Recreations," in "Chambers's Journal," April 24, 1875]
nineties (n.)youdaoicibaDictYouDict
1857 as the years of someone's life between 90 and 99; from 1848 as the tenth decade of years in a given century; 1849 with reference to Fahrenheit temperature. See ninety.
Many still live who remember those days; if the old men cannot tell you the exact date, they will say: 'It were in the nineties;' (etc.) ["Chambers's Journal," Nov. 1, 1856]
In Britain, the naughty nineties was a popular name 1920s-30s for the 1890s, based on the notion of a relaxing of morality and mood in contrast to earlier Victorian times. In U.S., gay nineties in reference to the same decade is attested from 1927, and was the title of a regular nostalgia feature in "Life" magazine about that time.
The long, dreary blue-law Sunday afternoons were periods of the Nineties which no amount of rosy retrospect will ever be able to recall as gay, especially to a normal healthy boy to whom all activities were taboo except G. A. Henty and the bound volumes of Leslie's Weekly of the Civil War. [Life, Sept. 1, 1927]
recess (n.)youdaoicibaDictYouDict
1530s, "act of receding," from Latin recessus "a going back, retreat," from recessum, past participle of recedere "to recede" (see recede). Meaning "hidden or remote part" first recorded 1610s; that of "period of stopping from usual work" is from 1620s, probably from parliamentary notion of "recessing" into private chambers.
room (n.)youdaoicibaDictYouDict
Old English rum "space" (extent or time); "scope, opportunity," from Proto-Germanic *ruman (cognates: Old Norse, Old Saxon, Old High German, Gothic rum, German Raum "space," Dutch ruim "hold of a ship, nave"), nouns formed from Germanic adjective *ruma- "roomy, spacious," from PIE root *reue- (1) "to open; space" (cognates: Avestan ravah- "space," Latin rus "open country," Old Irish roi, roe "plain field," Old Church Slavonic ravinu "level," Russian ravnina "a plain"). Old English also had a frequent adjective rum "roomy, wide, long, spacious."

Original sense preserved in make room "clear space for oneself" (late 14c.); meaning "chamber, cabin" first recorded early 14c. as a nautical term, and first applied mid-15c. to chambers within houses. The Old English word for this was cofa, ancestor of cove. Room-service is attested from 1913; room-temperature from 1879. Roomth "sufficient space" (1530s) now is obsolete.
six (n.)youdaoicibaDictYouDict
Old English siex, six, sex, from Proto-Germanic *sekhs (cognates: Old Saxon and Danish seks, Old Norse, Swedish, and Old Frisian sex, Middle Dutch sesse, Dutch zes, Old High German sehs, German sechs, Gothic saihs), from PIE *s(w)eks (cognates: Sanskrit sas, Avestan kshvash, Persian shash, Greek hex, Latin sex, Old Church Slavonic sesti, Polish sześć, Russian shesti, Lithuanian szeszi, Old Irish se, Welsh chwech).

Six-shooter, usually a revolver with six chambers, is first attested 1844; six-pack of beverage containers is from 1952, of abdominal muscles by 1995. Six of one and half-a-dozen of the other "little difference" is recorded from 1833. Six-figure in reference to hundreds of thousands (of dollars, etc.) is from 1840. Six feet under "dead" is from 1942.

Phrase at sixes and sevens originally was "hazarding all one's chances," first in Chaucer, perhaps from dicing (the original form was on six and seven); it could be a corruption of on cinque and sice, using the French names (which were common in Middle English) for the highest numbers on the dice. Meaning "at odds, in disagreement or confusion" is from 1785, perhaps via a notion of "left unsettled."
trapeze (n.)youdaoicibaDictYouDict
swing with a cross-bar, used for feats of strength and agility, 1861, from French trapèze, from Late Latin trapezium (see trapezium), probably because the crossbar, the ropes and the ceiling formed a trapezium.
The French, to whose powers of invention (so long as you do not insist upon utility) there is no limit, have invented for the world the Trapeze .... ["Chambers's Journal," July 6, 1861]
subrotundyoudaoicibaDictYouDict
"Somewhat or almost rotund; roundish", Mid 18th cent.; earliest use found in Chambers's Cyclopaedia. From post-classical Latin subrotundus from classical Latin sub- + rotundus.
acanthineyoudaoicibaDictYouDict
"Decorated with representations of acanthus leaves; resembling the leaves or branches of the acanthus", Mid 18th cent.; earliest use found in Chambers's Cyclopaedia. From classical Latin acanthinus of bear's foot, (of leaves) resembling those of bear's foot, (of garments) of or made from some species of cotton plant, or its etymon ancient Greek ἀκάνθινος made of shittim wood, in Hellenistic Greek also made of thorns (New Testament), thorny, (of cloths) made of cotton thistle from ἄκανθος + -ινος.
choanocyteyoudaoicibaDictYouDict
"A flagellated cell with a collar of protoplasm at the base of the flagellum, numbers of which line the internal chambers of sponges", Late 19th century: from Greek khoanē 'funnel' + -cyte.
acanthaceousyoudaoicibaDictYouDict
"Of the nature of an acanthus; (in later use) specifically belonging to or characteristic of the family Acanthaceae, comprising chiefly tropical shrubs and vines and having the genus Acanthus as the type genus", Mid 18th cent.; earliest use found in Ephraim Chambers (?1680–1740), encyclopaedist. From post-classical Latin acanthaceus + -ous.
siphuncleyoudaoicibaDictYouDict
"(In shelled cephalopods such as nautiloids and ammonoids) a calcareous tube containing living tissue running through all the shell chambers, serving to pump fluid out of vacant chambers in order to adjust buoyancy", Mid 18th century: from Latin siphunculus 'small tube'.
rudentureyoudaoicibaDictYouDict
"A convex moulding or ornament in the form of a rope", Early 18th cent.; earliest use found in Ephraim Chambers (?1680–1740), encyclopaedist. From French rudenture from rudenté + -ure.