neocon (n.)youdaoicibaDictYouDict[neocon 词源字典]
by 1987, abbreviation for neo-conservative in the U.S. political sense.
Neoconservatism is the first variant of American conservatism in the past century that is in the 'American grain.' It is hopeful, not lugubrious; forward-looking, not nostalgic; and its general tone is cheerful, not grim or dyspeptic. Its 20th-century heroes tend to be TR, FDR, and Ronald Reagan. Such Republican and conservative worthies as Calvin Coolidge, Herbert Hoover, Dwight Eisenhower, and Barry Goldwater are politely overlooked. [Irving Kristol, "The Neoconservative Persuasion," in "The Weekly Standard," Aug. 25, 2003]
[neocon etymology, neocon origin, 英语词源]
overlook (v.)youdaoicibaDictYouDict
mid-14c., "to examine, scrutinize, inspect," from over- + look (v.). Another Middle English sense was "to peer over the top of." These two literal senses have given rise to the two main modern meanings. Meaning "to look over or beyond and thus not see," via notion of "to choose to not notice" is first recorded 1520s. Seemingly contradictory sense of "to watch over officially, keep an eye on, superintend" is from 1530s. Related: Overlooked; overlooking. In Shekaspeare's day, overlooking also was a common term for "inflicting the evil eye on" (someone or something).
silent (adj.)youdaoicibaDictYouDict
c. 1500, "without speech, silent, not speaking," from Latin silentem (nominative silens) "still, calm, quiet," present participle of silere "be quiet or still" (see silence (n.)). Meaning "free from noise or sound" is from 1580s.

Of letters, c. 1600; of films, 1914. In the looser sense "of few words," from 1840. Phrase strong, silent (type) is attested from 1905. Silent majority in the political sense of "mass of people whose moderate views are not publicly expressed and thus overlooked" is first attested 1955 in a British context and was used by John F. Kennedy but is most associated in U.S. with the rhetoric of the Nixon administration (1969-74).
It is time for America's silent majority to stand up for its rights, and let us remember the American majority includes every minority. America's silent majority is bewildered by irrational protest. [Spiro T. Agnew, May 9, 1969]
In Victorian use, the phrase meant "the dead" (1874; compare Roman use of the noun plural of "silent" to mean "the dead"). Silence is golden (1831) is Carlyle's translation ["Sartor Resartus"] of part of the "Swiss Inscription" Sprechen ist silbern, Schweigen ist golden. In one 14c. text Latin "one who is silent" is translated by a beere stille.