problemyoudaoicibaDictYouDict[problem 词源字典]
problem: [14] A problem is etymologically something ‘thrown forward’. The word comes via Old French probleme and Latin problēma from Greek próblēma, a derivative of probállein ‘throw forward’. This was a compound verb formed from the prefix pro- ‘forward’ and bállein ‘throw’ (source of English ballistic, emblem, parable, etc). Things that are ‘thrown out’ project and can get in the way and hinder one, and so próblēma came to be used for an ‘obstacle’ or ‘problem’ – senses carried through into English problem.
=> ballistic, emblem, parable, symbol[problem etymology, problem origin, 英语词源]
acquisition (n.)youdaoicibaDictYouDict
late 14c., "act of obtaining," from Old French acquisicion (13c.) or directly from Latin acquisitionem (nominative acquisitio), noun of action from past participle stem of acquirere "get in addition, accumulate," from ad- "extra" (see ad-) + quaerere "to seek to obtain" (see query (v.)). Meaning "thing obtained" is from late 15c. The vowel change of -ae- to -i- in Latin is due to a Latin phonetic rule involving unaccented syllables in compounds.
beard (v.)youdaoicibaDictYouDict
c. 1300, "to grow or have a beard," from beard (n.). The sense of "confront boldly and directly" is from Middle English phrases such as rennen in berd "oppose openly" (c. 1200), reproven in the berd "to rebuke directly and personally" (c. 1400), on the same notion as modern slang get in (someone's) face. Related: Bearded; bearding.
brinkmanship (n.)youdaoicibaDictYouDict
also brinksmanship, with parasitic -s- and construction based on salesmanship, sportsmanship, etc.; from brink (the image of the brink of war dates to at least 1840).

Associated with the policies advocated by John Foster Dulles (1888-1959), U.S. Secretary of State 1953-1959. The word springs from Dulles' philosophy as outlined in a magazine interview [with Time-Life Washington bureau chief James Shepley] early 1956:
The ability to get to the verge without getting into the war is the necessary art. If you cannot master it, you inevitably get into war. If you try to run away from it, if you are scared to go to the brink, you are lost.
The quote was widely criticized by the Eisenhower Administration's opponents, and the first attested use of brinkmanship seems to have been in such a context, a few weeks after the magazine appeared, by Democratic presidential candidate Adlai Stevenson criticizing Dulles for "boasting of his brinkmanship, ... the art of bringing us to the edge of the nuclear abyss."
club (v.)youdaoicibaDictYouDict
"to hit with a club," 1590s, from club (v.). Meaning "gather in a club-like mass" is from 1620s. Related: Clubbed; clubbing.
CLUB, verb (military). -- In manoeuvring troops, so to blunder the word of command that the soldiers get into a position from which they cannot extricate themselves by ordinary tactics. [Farmer & Henley]
connect (v.)youdaoicibaDictYouDict
mid-15c., from Latin conectere "join together" (see connection). Displaced 16c. by connex (1540s), from Middle French connexer, from Latin *connexare, a supposed frequentative of conectere (past participle stem connex-). Connect was re-established 1670s.

A similar change took place in French, where connexer was superseded by connecter. Meaning "to establish a relationship" (with) is from 1881. Slang meaning "get in touch with" is attested by 1926, from telephone connections. Meaning "awaken meaningful emotions, establish rapport" is from 1942. Of a hit or blow, "to reach the target," from c. 1920. Related: Connected; connecting; connectedness.
contact (v.)youdaoicibaDictYouDict
1834, "put in contact," from contact (n.). Meaning "get in touch with" is 1927, American English. Related: Contacted; contacting.
fickle (adj.)youdaoicibaDictYouDict
c. 1200, "false, treacherous, deceptive, deceitful, crafty" (obsolete), probably from Old English ficol "deceitful, cunning, tricky," related to befician "deceive," and to facen "deceit, treachery; blemish, fault." Common Germanic (compare Old Saxon fekan "deceit," Old High German feihhan "deceit, fraud, treachery"), from PIE *peig- (2) "evil-minded, treacherous, hostile" (see foe).

Sense of "changeable, inconstant, unstable" is from c. 1300 (especially of Fortune and women). Related: Fickleness. Fickly (c. 1300) is rare or obsolete. Also with a verb form in Middle English, fikelen "to deceive, flatter," later "to puzzle, perplex," which survived long enough in Northern dialects to get into Scott's novels. Fikel-tonge (late 14c.) was an allegorical or character name for "one who speaks falsehoods."
hobnail (n.)youdaoicibaDictYouDict
1590s, the first element probably identical with hob "rounded peg or pin used as a mark or target in games" (1580s), of unknown origin. See hob. Because they were used to make rough shoes, the word was used figuratively for "rustic person" 17c. and after. Related: Hobnailed.
hustle (v.)youdaoicibaDictYouDict
1680s, "to shake to and fro" (especially of money in a cap, as part of a game called hustle-cap), metathesized from Dutch hutselen, husseln "to shake, to toss," frequentative of hutsen, variant of hotsen "to shake." "The stems hot-, hut- appear in a number of formations in both High and Low German dialects, all implying a shaking movement" [OED]. Related: Hustled; hustling. Meaning "push roughly, shove" first recorded 1751. That of "hurry, move quickly" is from 1812.
The key-note and countersign of life in these cities [of the U.S. West] is the word "hustle." We have caught it in the East. but we use it humorously, just as we once used the Southern word "skedaddle," but out West the word hustle is not only a serious term, it is the most serious in the language. [Julian Ralph, "Our Great West," N.Y., 1893]
Sense of "to get in a quick, illegal manner" is 1840 in American English; that of "to sell goods aggressively" is 1887.
mess (v.)youdaoicibaDictYouDict
late 14c., "serve up in portions," from mess (n.). Meaning "take one's meals" is from 1701; that of "make a mess" is from 1853. Related: Messed; messing. To mess with "interfere, get involved" is from 1903; mess up "make a mistake, get in trouble" is from 1933 (earlier "make a mess of," 1909), both originally American English colloquial.
panic (v.)youdaoicibaDictYouDict
1827, "to afflict with panic," from panic (n.). Intransitive sense of "to lose one's head, get into a panic" is from 1902. Related: Panicked; panicking.
part (n.)youdaoicibaDictYouDict
mid-13c., "division, portion of a whole," from Old French part "share, portion; character; power, dominion; side, way, path," from Latin partem (nominative pars) "a part, piece, a share, a division; a party or faction; a part of the body; a fraction; a function, office," related to portio "share, portion," from PIE root *pere- (2) "to assign, grant, allot" (reciprocally, "to get in return;" cognates: Greek peprotai "it has been granted," Sanskrit purtam "reward," Hittite parshiya- "fraction, part").

It has replaced native deal (n.) in most senses. Theatrical sense (late 15c.) is from an actor's "share" in a performance (The Latin plural partis was used in the same sense). Meaning "the parting of the hair" is 1890, American English.

As an adjective from 1590s. Late Old English part "part of speech" did not survive and the modern word is considered a separate borrowing. Phrase for the most part is from late 14c. To take part "participate" is from late 14c.
penetrate (v.)youdaoicibaDictYouDict
1520s, from Latin penetratus, past participle of penetrare "to put or get into, enter into," related to penitus "within, inmost," penus "innermost part of a temple, store of food," penates "household gods." Related: Penetrated; penetrating.
range (v.)youdaoicibaDictYouDict
c. 1200, rengen, "move over a large area, roam with the purpose of searching or hunting," from Old French ranger, earlier rengier "to place in a row, arrange; get into line," from reng "row, line," from a Germanic source (see rank (n.)). Sense of "to arrange in rows" is recorded from c. 1300; intransitive sense of "exist in a row or rows" is from c. 1600. Related: Ranged; ranging.
reproach (n.)youdaoicibaDictYouDict
mid-14c., "a rebuke, blame, censure;" also "object of scorn or contempt;" c. 1400, as "disgrace, state of disgrace," from Old French reproche "blame, shame, disgrace" (12c.), from reprochier "to blame, bring up against," said by some French etymologists to be from Vulgar Latin *repropiare, from Latin re- "opposite of" + prope "near" (see propinquity), with suggestions of "bring near to" as in modern "get in (someone's) face." But others would have it from *reprobicare, from Latin reprobus/reprobare (see reprobate (adj.)).
shall (v.)youdaoicibaDictYouDict
Old English sceal, Northumbrian scule "I owe/he owes, will have to, ought to, must" (infinitive sculan, past tense sceolde), a common Germanic preterite-present verb (along with can, may, will), from Proto-Germanic *skal- (cognates: Old Saxon sculan, Old Frisian skil, Old Norse and Swedish skola, Middle Dutch sullen, Old High German solan, German sollen, Gothic skulan "to owe, be under obligation;" related via past tense form to Old English scyld "guilt," German Schuld "guilt, debt;" also Old Norse Skuld, name of one of the Norns), from PIE root *skel- (2) "to be under an obligation."

Ground sense of the Germanic word probably is "I owe," hence "I ought." The sense shifted in Middle English from a notion of "obligation" to include "futurity." Its past tense form has become should (q.v.). Cognates outside Germanic are Lithuanian skeleti "to be guilty," skilti "to get into debt;" Old Prussian skallisnan "duty," skellants "guilty."
standing (n.)youdaoicibaDictYouDict
late 14c., verbal noun from stand (v.). In the sense of "rank, status," it is first recorded 1570s. Sense of "state of having existed for some time" is 1650s. Legal sense is first recorded 1924. Sports sense is from 1881. To be in good standing is from 1789. Standing room is from 1788.
A young gentleman attempting to get into Drury-lane play-house, found there was such a croud of people that there was no room. Just without the door, a damsel of the town accosted him with 'can't you get in, sir?' to which he replied in the negative. 'If you'll go along with me, resumed she you may get in very easily, for I can furnish you with very good standing room.' ["The Banquet of Wit, or A Feast for the Polite World," London, 1790]
tear (v.1)youdaoicibaDictYouDict
"pull apart," Old English teran "to tear, lacerate" (class IV strong verb; past tense tær, past participle toren), from Proto-Germanic *teran (cognates: Old Saxon terian, Middle Dutch teren "to consume," Old High German zeran "to destroy," German zehren, Gothic ga-tairan "to tear, destroy"), from PIE *der- (2) "to split, peel, flay," with derivatives referring to skin and leather (cognates: Sanskrit drnati "cleaves, bursts," Greek derein "to flay," Armenian terem "I flay," Old Church Slavonic dera "to burst asunder," Breton darn "piece").

The Old English past tense survived long enough to get into Bible translations as tare before giving place 17c. to tore, which is from the old past participle toren. Sense of "to pull by force" (away from some situation or attachment) is attested from late 13c. To be torn between two things (desires, loyalties, etc.) is from 1871.