ANTI-SEMITISM is an ancient derangement, the oldest of hatreds, so it is strange that it lacks a more meaningful name. The misnomer "anti-Semitism" -- a term coined in 1879 by the German agitator Wilhelm Marr, who wanted a scientific-sounding euphemism for Judenhass, or Jew-hatred -- is particularly inane, since hostility to Jews has never had anything to do with Semites or being Semitic. (That is why those who protest that Arabs cannot be anti-Semitic since "Arabs are Semites too" speak either from ignorance or disingenuousness.)

Perhaps there is no good name for a virus as mutable and unyielding as anti-Semitism. "The Jews have been objects of hatred in pagan, religious, and secular societies," write Joseph Telushkin and Dennis Prager in Why the Jews?, their classic study of anti-Semitism. "Fascists have accused them of being Communists, and Communists have branded them capitalists. Jews who live in non-Jewish societies have been accused of having dual loyalties, while Jews who live in the Jewish state have been condemned as 'racists.' Poor Jews are bullied, and rich Jews are resented. Jews have been branded as both rootless cosmopolitans and ethnic chauvinists. Jews who assimilate have been called a 'fifth column,' while those who stay together spark hatred for remaining separate."...