cotillion
Concise Oxford English Dictionary © 2008 Oxford University Press:
cotillion /kəˈtɪljən/
▶noun
- 1 an 18th-century French dance based on the contredanse.
■ US a quadrille.
- 2 US a formal ball, especially one at which debutantes are presented.
– origin C18: from Fr. cotillon, lit. ‘petticoat dance’, dimin. of cotte, from OFr. cote.
'cotillion' also found in these Oxford entries:

