From the Greek for "leaf", what are the individual parts of a flower's corolla called?

From an item once used as a ballot, which word means to exclude someone socially or vote against his membership? The Times-Picayune newspaper has covered the Louis Armstrong Jazz Camp in which city? From the French for "loosening", what was the easing of U.S.-Soviet relations in the 1970s called? From the French for "training", which equestrian event is sometimes called "horse ballet"? From the Greek for "lasting a day", what are items like campaign buttons and cruise ship menus, not meant to last, call… From the Italian for "foam", which molded ice cream dessert often contains candied fruit and nuts? From the Latin for "adult", what is the stage of physical maturity that usually happens to teenagers? From the Latin for "six-monthly", which divisions of a college year can be 15 to 18 weeks long?