bak·sheesh (bāk'shēsh', bāk-shēsh') n.
pl.baksheesh A gratuity, tip, or bribe paid to expedite service, especially in some Near Eastern countries.
[Persian bakhshish, present, from Middle Persian bakhshishn, from bakhshīdan, bakhsh-, to give presents, from Avestan bakhsh-; see bhag- in Indo-European roots.]