annulment; cancellation; reversal.
Music. an 18th-century instrumental suite for outdoor performance, similar to the divertimento and the serenade.
Origin: 1375–1425; late Middle English cassacio Related forms
< Medieval Latin cassātiōn-
(stem of cassātiō
), equivalent to Late Latin cassāt
) past participle of cassāre
to annul (cass-
variant of Latin quass-
) + -ātus -ate1
) + -iōn- -ion