English
Quidditch
Coined by British author J.
The story
Coined by British author J. In Quidditch Through the Ages, Rowling gives some etymological information, hinting that the word evolved from Queerditch (compound of queer + ditch), with some spelling variation as would be expected in real life Middle English, namely Kwidditch, Kweerditch.
Today it means
noun A fictional ball game played between two teams of seven players riding flying broomsticks, using four balls and six elevated ring-shaped goals.
Language periods are conventional ranges, not dates for this word.
Etymograph / Quidditch