file (v.1)youdaoicibaDictYouDict[file 词源字典]
"place (papers) in consecutive order for future reference," mid-15c., from Old French filer "string documents on a thread or wire for preservation or reference" (15c.), earlier "to spin thread," from fil "thread, string" (12c.), from Latin filum "a thread, string; thread of fate; cord, filament," from PIE *gwhis-lom (cognates: Armenian jil "sinew, string, line," Lithuanian gysla "vein, sinew," Old Church Slavonic zila "vein"), from root *gwhi- "thread, tendon." The notion is of documents hung up on a line in consecutive order for ease of reference.
File (filacium) is a threed or wyer, whereon writs, or other exhibits in courts, are fastened for the better keeping of them. [Cowel, "The Interpreter," 1607]
Methods have become more sophisticated, but the word has stuck. Meaning "place among the records of a court or office" is from 1510s; of newspaper reporters sending in stories, 1954. Intransitive sense "march in a line (as soldiers do) one after another" is from 1610s. Related: Filed; filing.[file etymology, file origin, 英语词源]
lock-step (n.)youdaoicibaDictYouDict
1802, in military writing, for a very tight style of mass marching, from lock (n.) + step (n.).
Lock-step. A mode of marching by a body of men going one after another as closely as possible, in which the leg of each moves at the same time with and closely follows the corresponding leg of the person directly before him. [Thomas Wilhelm, "Military Dictionary and Gazetteer," Philadelphia, 1881]
Figurative use by 1836.
pork (n.)youdaoicibaDictYouDict
c. 1300 (early 13c. in surname Porkuiller), "flesh of a pig as food," from Old French porc "pig, swine, boar," and directly from Latin porcus "pig, tame swine," from PIE *porko- "young swine" (cognates: Umbrian purka; Old Church Slavonic prase "young pig;" Lithuanian parsas "pig;" and Old English fearh, Middle Dutch varken, both from Proto-Germanic *farhaz).

Pork barrel in the literal sense is from 1801, American English; meaning "state's financial resources (available for distribution)" is attested from 1907 (in full, national pork barrel); it was noted as an expression of U.S. President President William Howard Taft:
"Now there is a proposition that we issue $500,000,000 or $1,000,000,000 of bonds for a waterway, and then that we just apportion part to the Mississippi and part to the Atlantic, a part to the Missouri and a part to the Ohio. I am opposed to it. I am opposed to it because it not only smells of the pork barrel, but it will be the pork barrel itself. Let every project stand on its bottom." ["The Outlook," Nov. 6, 1909, quoting Taft]
The magazine article that includes the quote opens with:
We doubt whether any one knows how or when, or from what application of what story, the phrase "the National pork barrel" has come into use. If not a very elegant simile, it is at least an expressive one, and suggests a graphic picture of Congressmen eager for local advantage going, one after another, to the National pork barrel to take away their slices for home consumption.
Pork in this sense is attested from 1862 (compare figurative use of bacon). Pork chop is attested from 1858. Pork pie is from 1732; pork-pie hat (1855) originally described a woman's style popular c. 1855-65, so called for its shape.
satire (n.)youdaoicibaDictYouDict
late 14c., "work intended to ridicule vice or folly," from Middle French satire (14c.) and directly from Latin satira "satire, poetic medley," earlier satura, in lanx satura "mixed dish, dish filled with various kinds of fruit," literally "full dish," from fem. of satur "sated" (see saturate).

First used in the literary sense in Latin in reference to a collection of poems in various meters on a variety of subjects by the late republican Roman poet Ennius. The matter of the little that survives of his verse does not seem to be particularly satiric, but in classical Latin the word came to mean especially a poem which assailed the prevailing vices, one after another. Altered in Latin by influence of Greek satyr, on mistaken notion that the literary form is related to the Greek satyr drama (see satyr).
Satire, n. An obsolete kind of literary composition in which the vices and follies of the author's enemies were expounded with imperfect tenderness. In this country satire never had more than a sickly and uncertain existence, for the soul of it is wit, wherein we are dolefully deficient, the humor that we mistake for it, like all humor, being tolerant and sympathetic. Moreover, although Americans are 'endowed by their Creator' with abundant vice and folly, it is not generally known that these are reprehensible qualities, wherefore the satirist is popularly regarded as a sour-spirited knave, and his every victim's outcry for codefendants evokes a national assent. [Ambrose Bierce, "Devil's Dictionary," 1911]



Proper satire is distinguished, by the generality of the reflections, from a lampoon which is aimed against a particular person, but they are too frequently confounded. [Johnson]



[I]n whatever department of human expression, wherever there is objective truth there is satire [Wyndham Lewis, "Rude Assignment," 1950]
For nuances of usage, see humor (n.).
seriatimyoudaoicibaDictYouDict
1670s (earlier seratim, c. 1500), "one after another," from Medieval Latin seriatim, from Latin series (see series).
skid (n.)youdaoicibaDictYouDict
c. 1600, "beam or plank on which something rests," especially on which something heavy can be rolled from place to place (1782), of uncertain origin, probably from a Scandinavian source akin to Old Norse skið "stick of wood" (see ski (n.)). As "a sliding along" from 1890; specifically of motor vehicles from 1903. Skid-mark is from 1914.

In the timber regions of the American West, skids laid down one after another to form a road were "a poor thing for pleasure walks, but admirably adapted for hauling logs on the ground with a minimum of friction" ["Out West" magazine, October 1903]. A skid as something used to facilitate downhill motion led to figurative phrases such as hit the skids "go into rapid decline" (1909), and see skid row.