The Collaborative International Dictionary of English v.0.48:

Raki \Ra`ki"\, Rakee \Ra`kee"\ (r[.a]`k[=e]"; r[a^]k"[-e]), n.
   [Turk. r[=a]q[imac] arrack.]
   A kind of ardent spirits used in southern Europe and the
   East, distilled from grape juice, grain, etc.
   [Webster 1913 Suppl.]