The name 'hackney' was once thought to be an anglicized derivative of French haquenée—a horse of medium size recommended for lady riders; however, current opinion is that it is derived from the village name Hackney (now part of London). The place-name, through its fame for its horses and horse-drawn carriages, is also the root of the Spanish word jaca, a term used for a small breed of horse and the Sardinian achetta horse. The first documented 'hackney coach'—the forerunner of the more generic 'hackney carriage'—operated in London in 1621.