noun, plural co·til·lons [kuh-til-yuh nz, koh-; French kaw-tee-yawn] /kəˈtɪl yənz, koʊ-; French kɔ tiˈyɔ̃/.
Examples from the Web for cotillon
The last objection swept away, Fernando began secretly to take lessons in the waltz, cotillon and other dances of the day.Sustained honor|John R. Musick,
So he carried his handsome pupil into the next room and took his place with her in a cotillon.Elsie Venner|Oliver Wendell Holmes, Sr.
Both the cotillon and the mazurka are danced—one before, the other after supper—at Court balls and other dances.The Diary of a Superfluous Man and Other Stories|Ivn Turgnieff
Next morning Penrod woke in profound depression of spirit, the cotillon ominous before him.
The cotillon loomed dismally before Penrod now; but it was his duty to secure a partner and he set about it with a dreary heart.