spadia
 n.— «About 15 years ago, in response to advertiser requests, comic section printers began using the smaller sheet of newsprint to wrap around the comics section. In the newspaper business this sheet is known as a spadia or gatefold. » —“Advertisers enthusiastic about color ads on Sunday comics” The Gazette (Colorado Springs, Colo.) June 4, 2004. (source: Double-Tongued Dictionary)