Lagniappe refers to "a small gift given to a customer by a merchant at the time of a purchase" (such as a 13th beignet when buying a ozen), or more broadly, "something given or obtained gratuitously or by way of good measure." The word is used in Trinidad and Tobago, Puerto Rico, Louisiana, Eastern Oklahoma, Southern Arkansas, Charleston,SC, southern and western Mississippi, the gulf coast of Alabama, and parts of eastern Texas. It was also once in common usage by antiquarian booksellers, without regional limitation, and is still used by more old-fashioned members of that tribe.