1450: derby Nov 30, 2018

If even proper nouns have cultural relevance, then they can become any type of other words. For instance, the town of Derby in England is home to an early horse race, started in 1780. Once this race became well-known enough, and because the city is small enough to not necessarily be confused with other activities, it began to be used not just as a denotation for other horse races—though this is also true such as in the famous Kentucky Derby—but for any other type of competitive sport, even though it now only has historical relation to the city most of the time.
Check out the new video released today: https://youtu.be/PKXEg15Etk0