來自美國參議員Joseph McCarthy,美國上世紀50年代反共思想的代表人物，因此，別人就根據他的名字杜撰出該詞。該姓氏字面意思為Son of Carthy.
英文詞源
McCarthyism
1950, with -ism + name of U.S. Sen. Joseph R. McCarthy (1908-1957), leader of U.S. anti-Communist agitation. The term is said to have been coined by "Washington Post" political cartoonist Herbert Block ("Herblock"). The surname is from Irish Mac Carthaigh "son of Carthach" (Welsh Caradawc), an ancient Celtic name, also known in its Latinized form, Caractacus (last of the British leaders to resist Rome, captured 51 C.E.)
雙語例句
1. At that time, however, McCarthyism prevailed in the United States.
但當時, 美國麥卡錫主義盛行.
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2. Schrecker, Ellen . No Ivory Tower: McCarthyism and the Universities . 1986.
《沒有象牙塔: 麥卡錫主義和大學》1986.
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3. Many are the Crimes: McCarthyism in America . 1998.
《許多是罪犯: 美國麥卡錫主義》1998.
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4. I blamed him and his generation for everything from McCarthyism to the Vietnam War to Watergate.