Nuclear, horses and Dabbelju

 Language wars: the 19 greatest linguistic spats of all time | Science | The Guardian … :

‘Nucular’ war The fact that we used to make fun of George W Bush for his malapropisms seems quaint these days. But it was worrying to many of us at the time that the man in charge of the world’s most powerful nuclear arsenal didn’t seem to be able to pronounce it right. He said “nucular” and it was one more black mark against his intelligence. But this syllable-flip is in fact a fairly common linguistic process called metathesis. All English speakers live with the results of historic metatheses that caught on: horse used to be “hros” and bird used to be “brid”.