Definition of Fleta
The name given to an ancient treatise on the laws of England, founded mainly upon the writings of Bracton and Glanville, and supposed to have been written in the time of Edw. I. The author is unknown, but it is surmised that he was a judge or learned lawyer who was at that time confined in the Fleet prison, whence the name of the book.
That's the definition of Fleta in Black's Law Dictionary 6th Edition. Courtesy of Cekhukum.com.