Source : Webster's Revised Unabridged Dictionary (1913)

Baksheesh \Bak"sheesh`\, Bakshish \Bak"shish`\, n.
   Same as {Backsheesh}.

Source : WordNet®

bakshish
     n : a relatively small amount of money given for services
         rendered (as by a waiter) [syn: {gratuity}, {tip}, {pourboire},
          {baksheesh}, {bakshis}, {backsheesh}]