The Word Detective: Searching for the Meaning of It All at the Oxford English Dictionary

Can you drink a glass of balderdash? What do you call the part of a dog's back it can't scratch? And if, serendipitously, you find yourself in Serendip, then where exactly are you?

The answers to all of these questions -- and a great many more -- can be found in the pages of the Oxford English Dictionary, the definitive record of the English language. And there is no better guide to the dictionary's many wonderments than the former chief editor of the OED, John Simpson. Simpson spent almost...