According to Wikipedia, toile became an English word in the year 1561. In French, “toile” is a much older word meaning fabric. The famous toile de jouy style of fabric, depicting country scenes in one color on a white or off-white background, was created during the 18th century and is attributed to the town of Jouy-en-Josas (hence the name) near Versailles and just southwest of Paris.
Toile de Jouy, sometimes abbreviated to simply "toile", is a type of decorating pattern consisting of a usually white or off-white background on which a repeated pattern depicting a fairly complex scene, generally of a pastoral theme such as (for example) a couple having a picnic by a lake. Toiles also often consist of an arrangement of flowers.
A toile pattern is one of the few patterns that looks good overdone as well as underdone.
Image Sources: Barry Dixon, Thibaut, Traditional Home