lagniappe

(lănˈyəp, lăn-yăpˈ)

noun
Chiefly Southern Louisiana & Mississippi

1. A small gift presented by a storeowner to a customer with the customer's purchase.
2. An extra or unexpected gift or benefit. Also called regionally boot². See Regional Note at beignet.

Regional Note: Lagniappe derives from New World Spanish la ñapa, “the gift,” and ultimately from Quechua yapay, “to give more.” The word came into the rich Creole dialect mixture of New Orleans and there acquired a French spelling. It is still used in the Gulf states, especially southern Louisiana, to denote a little bonus that a friendly shopkeeper might add to a purchase. By extension, it may mean “an extra or unexpected gift or benefit.”