preventyoudaoicibaDictYouDict[prevent 词源字典]
prevent: [15] If you prevent someone, you ‘come before’ them (and indeed that literal meaning of the verb survived for some time: Thomas Cromwell wrote in 1538 ‘I have sent it unto him after the departure of the said Muriell, to the intent he might prevent the ambassadors post and you have leisure to consult and advise upon the same’; and as late as 1766 we find in Frances Sheridan’s Sidney Biddulph ‘I am an early riser, yet my lord V – prevented me the next morning, for I found him in the parlour when I came downstairs’).

The word comes from Latin praevenīre, a compound verb formed from the prefix prae- ‘before’ and venīre ‘come’. Already in Latin, though, it had progressed semantically from ‘come before’ via ‘act in advance of, anticipate’ to ‘hinder’, and this meaning emerged in English in the 16th century.

=> adventure, venue[prevent etymology, prevent origin, 英语词源]
ghastly (adj.)youdaoicibaDictYouDict
c. 1300, gastlich, "inspiring fear or terror, hideous, shocking," with -lich (see -ly (2)) + gast (adj.) "afraid, frightened," past participle of gasten "to frighten," from Old English gæstan "to torment, frighten" (see ghost (n.)). Spelling with gh- developed 16c. from confusion with ghost. Middle English also had gastful in the same sense, but this is now obsolete. Sidney and Shakespeare also used ghastly as an adverb. Related: Ghastliness.
gunsel (n.)youdaoicibaDictYouDict
1914, American English underworld slang, from hobo slang, "a catamite;" specifically "a young male kept as a sexual companion, especially by an older tramp," from Yiddish genzel, from German Gänslein "gosling, young goose" (see goose (n.)). The secondary, non-sexual meaning "young hoodlum" seems to be entirely traceable to Dashiell Hammett, who sneaked it into "The Maltese Falcon" (1929) while warring with his editor over the book's racy language:
"Another thing," Spade repeated, glaring at the boy: "Keep that gunsel away from me while you're making up your mind. I'll kill him."
The context implies some connection with gun and a sense of "gunman," and evidently that is what the editor believed it to mean. The word was retained in the script of the 1941 movie made from the book, so evidently the Motion Picture Production Code censors didn't know it either.
The relationship between Kasper Gutman (Sidney Greenstreet) and his young hit-man companion, Wilmer Cook (Elisha Cook, Jr.), is made fairly clear in the movie, but the overt mention of sexual perversion would have been deleted if the censors hadn't made the same mistaken assumption as Hammett's editor. [Hugh Rawson, "Wicked Words," 1989, p.184]
hemorrhage (v.)youdaoicibaDictYouDict
by 1882, from hemorrhage (n.). Related: Hemorrhaged; hemorrhaging.
Slang in Reports: B.I.D. for "Brought in Dead" and "Dotty" are, [Mr. Sidney Holland of London Hospital] considers, permissible expressions, but he draws the line at "fitting" and "hæmorrhaging." Only such terms, he says, should be used as outside doctors will understand. We would say that on a point of such odiously bad taste he might have been much more severe. [Lavinia L. Dock, "The American Journal of Nursing," 1906]
sheep (n.)youdaoicibaDictYouDict
ruminant mammal, Old English sceap, scep, from West Germanic *skæpan (cognates: Old Saxon scap, Old Frisian skep, Middle Low German schap, Middle Dutch scaep, Dutch schaap, Old High German scaf, German Schaf), of unknown origin. Not found in Scandinavian (Danish has faar for "sheep") or Gothic (which uses lamb), and with no known cognates outside Germanic. The more usual Indo-European word for the animal is represented in English by ewe.

The plural form was leveled with the singular in Old English, but Old Northumbrian had a plural scipo. Used since Old English as a type of timidity and figuratively of those under the guidance of God. The meaning "stupid, timid person" is attested from 1540s. The image of the wolf in sheep's clothing was in Old English (from Matt. vii:15); that of separating the sheep from the goats is from Matt. xxv:33. To count sheep in a bid to induce sleep is recorded from 1854 but seems not to have been commonly written about until 1870s. It might simply be a type of a tedious activity, but an account of shepherd life from Australia from 1849 ["Sidney's Emigrant's Journal"] describes the night-shepherd ("hut-keeper") taking a count of the sheep regularly at the end of his shift to protect against being answerable for any animals later lost or killed.

Sheep's eyes "loving looks" is attested from 1520s (compare West Frisian skiepseach, Dutch schaapsoog, German Schafsauge). A sheep-biter was "a dog that worries sheep" (1540s); "a mutton-monger" (1590s); and "a whore-monger" (1610s, i.e. one who "chases mutton"); hence Shakespeare's sheep-biting "thieving, sneaky."
StrephonyoudaoicibaDictYouDict
"lover," from name of shepherd lover in Sidney's "Arcadia" (begun 1580).
SydneyyoudaoicibaDictYouDict
Australian city, founded 1788 and named for British Home Secretary Thomas Townshend, 1st Viscount Sydney (1733-1800). The family name (also Sidney) is literally "dweller by the well-watered land," from Old English sid "side" + ieg "island."