The beginning of everything...

This is the alleged and mostly untrue origin of a very famous word...

In 1791 a Dublin theater owner made a bet in a pub that he could introduce a word into the language within twenty-four hours. He then went out and hired a group of street urchins to write the word he'd created, which was a nonsense word, on walls around the city of Dublin. Within a day, the word was common currency and had acquired a meaning (since no one knew what it meant, everyone thought it was some sort of test) and He had some extra cash in his pocket. However, there is no evidence to support the story, and the term was already in use before the alleged bet in 1791.
Name the word...

Answer: Quiz.
A very simple one. Cracked by all.