英语词源字典 - 在线词源网站

chronic (adj.): early 15c., of diseases, "lasting a long time," from Middle French chronique, from Latin chronicus, from Greek khronikos "of time, concerning time," from khronos "time" (see chrono-). Vague disapproving sense (from 17c.) is from association with diseases and later addictions.
disapprove (v.): late 15c., "disprove;" as the reverse of approve it is first attested 1640s. See dis- + approve. Related: Disapproved; disapproving.
egregious (adj.): 1530s, "distinguished, eminent, excellent," from Latin egregius "distinguished, excellent, extraordinary," from the phrase ex grege "rising above the flock," from ex "out of" (see ex-) + grege, ablative of grex "herd, flock" (see gregarious).

Disapproving sense, now predominant, arose late 16c., originally ironic. It is not in the Latin word, which etymologically means simply "exceptional." Related: Egregiously; egregiousness.
gang (n.): from Old English gang "a going, journey, way, passage," and Old Norse gangr "a group of men, a set," both from Proto-Germanic *gangaz (cognates: Old Saxon, Old Frisian, Danish, Dutch, Old High German, German gang, Old Norse gangr, Gothic gagg "act of going"), from PIE root *ghengh- "to step" (cognates: Sanskrit jangha "shank," Avestan zanga- "ankle," Lithuanian zengiu "I stride"). Thus not considered to be related to go.

The sense evolution is probably via meaning "a set of articles that usually are taken together in going" (mid-14c.), especially a set of tools used on the same job. By 1620s this had been extended in nautical speech to mean "a company of workmen," and by 1630s the word was being used, with disapproving overtones, for "any band of persons traveling together," then "a criminal gang or company" (gang of thieves, gang of roughs, etc.). By 1855 gang was being used in the sense "group of criminal or mischievous boys in a city." In American English, especially of slaves working on plantations (1724). Also formerly used of animal herds or flocks (17c.-19c.). Gangway preserves the original sense of the word, as does gangplank.
harrumph: representing the sound of clearing the throat or a disapproving noise, 1918, imitative. Related: Harrumphed; harrumphing.
lion (n.): late 12c., from Old French lion "lion," figuratively "hero," from Latin leonem (nominative leo) "lion; the constellation leo," from Greek leon (genitive leontos), from a non-Indo-European language, perhaps Semitic (compare Hebrew labhi "lion," plural lebaim; Egyptian labai, lawai "lioness").

A general Germanic borrowing from Latin (compare Old English leo, Anglian lea; Old Frisian lawa; Middle Dutch leuwe, Dutch leeuw; Old High German lewo, German Löwe); it is found in most European languages, often via Germanic (Old Church Slavonic livu, Polish lew, Czech lev, Old Irish leon, Welsh llew). Used figuratively from c. 1200 in an approving sense, "one who is fiercely brave," and a disapproving one, "tyrannical leader, greedy devourer." Lion's share "the greatest portion" is attested from 1701.
po-faced: "Humourless and disapproving", 1930s: perhaps from po, influenced by poker-faced. More The po in po-faced, ‘humourless and disapproving’, probably comes from the use of po to mean ‘chamber pot’, though it might also have been influenced by the exclamation ‘poh!’, used to reject something contemptuously. In any event, the phrase is likely to be modelled on the expression poker-faced (early 20th century). This comes from the need to keep a deadpan face when playing poker. The game, first recorded in the 1830s in the USA probably gets its name from the German word pochen ‘to brag’.