A writer may make up a new word if none of those available suit his purpose. Lewis Carroll gave us chortling, a laugh caught somewhere between a chuckle and a snort. Edgar Allan Poe invented tintinnabulation to try to capture the sound silver bells might make. A hundred years ago, who knew the word television? And who today would think of calling a bicycle a velocipede. Because we use language to give orders to employees, instruct children, pass on news of world disasters, project rockets into space,