When the complete edition of what would become the Oxford English Dictionary debuted in 1928, it was lauded as a comprehensive collection of the English language, a glossary so vast—and so thorough—that no other reference book could ever exceed its detail or depth. In total, the project took seven decades to catalogue everything from A to Z, defining a total of 414,825 words. But in the eyes of its editor James Murray, the very first volume of the dictionary was something of an embarrassment: It was missing a word.
