baksheesh(n = noun.possession) backsheesh, bakshis, bakshish, gratuity, pourboire, tip - a relatively small amount of money given for services rendered (as by a waiter);
is a kind of fringe benefit, perk, perquisite
has particulars: christmas box

   Same as Backsheesh. [1913 Webster]

   A relatively small amount of money given for services rendered (as by a waiter). Same as Backsheesh. [WordNet 1.5]

baksheesh, n. (also backsheesh) (in some oriental countries) a small sum of money given as a gratuity or as alms.

Etymology:
ult. f. Pers. baksis f. baksidan give