Not quite the actual words, but the disappearance of capital letters at the beginning of many nouns annoys me. In particular, their disappearance before ranks: Dukes and Earls keep them, while Majors and Flight-Lieutenants (who earned them, rather than inherited them) seem to have to have lost them. They also seem to be disappearing from the start of sentences and on proper nouns, but that is sloppiness. This was started by the Grauniad saying that Johnson had been ‘flying in a typhoon’. The mind boggles!