1) The french term for scottish 
• (n.) A dancing tune in the Scotch style.
variety of contredanse that was popular in the late 18th and early 19th centuries in France and England. It was danced in quick 24 time by a double ...
É`cos`saise' noun [ French] (Mus.) A dancing tune in the Scotch style. 
originally a slow dance in 3/4 time, allegedly of Scottish origin but not at all similar to the Scottish dance music, such as the reel. Later it became livelier and was written in duple time.