LAGNIAPPE
lagniappe
(noun) a small gift (especially one given by a merchant to a customer who makes a purchase)
Source: WordNet® 3.1
Etymology
Noun
lagniappe (plural lagniappes)
(chiefly, Louisiana, Mississippi, Trinidad and Tobago) An extra or unexpected gift or benefit, such as that given to customers when they purchase something.
Synonyms: brotus (chiefly Southern US), pasella (South Africa), tilly (Ireland)
Coordinate terms
• luck penny
Anagrams
• appealing, panplegia
Source: Wiktionary
La*gniappe, La*gnappe", n. [Etym. uncertain.]
Definition: In Louisiana, a trifling present given to customers by
tradesmen; a gratuity.
Lagniappe . . .is something thrown in, gratis, for good measure.
Mark Twain.
Source: Webster’s Unabridged Dictionary 1913 Edition