In composing a state map of New York in the 1930s, the General Drafting Company wanted to be sure that competing mapmakers would not simply copy its work. So the company’s founder, Otto G. Lindberg, and his assistant, Ernest Alpers, scrambled their initials and placed the fictional town of Agloe at the intersection of two dirt roads in the Catskills north of Roscoe.

Several years later, they discovered Agloe on a Rand McNally map and confronted their competitor. But Rand was innocent: It had got the name from the county government, which had taken it from the Agloe General Store, which now occupied the intersection. The store had taken the name from a map by Esso, which had (apparently) copied it from Lindberg’s map. Agloe had somehow clambered from imagination into reality.

Similarly, in 2001 editors placed a fake word in the New Oxford American Dictionary as a trap for other lexicographers who might steal their material. Fittingly, the word was esquivalience, “the willful avoidance of one’s official responsibilities; the shirking of duties.”

Sure enough, the word turned up at Dictionary.com (it’s since been taken down), citing Webster’s New Millennium Dictionary.

And as with Agloe, the invention has taken on a life of its own. NOAD editor Christine Lindberg, who coined esquivalience, told the Chicago Tribune that she finds herself using it regularly. “I especially like the critical, judgmental tone I can get out of it: ‘Those esquivalient little wretches.’ Sounds literate and nasty all in one breath. I like that.”