Thanks, Dandybandy. I'd wince - but only a little - at the singular 'rostra' and the 'chaise lonje'. I think foreign words that are now used in English are often tricky, for all sorts of reasons. I had a friend who got annoyed if anyone said 'cul-de-sacs'. Th at used to be considered an incorrect plural, but it is now widely accepted. And I feel it should be accepted - if not, we should all be using the foreign pronunciation as well as the spelling.
Although the 'amachewer' is a little irritating, it doesn't bother me unduly.