The Collaborative International Dictionary of English v.0.48:

Tafia \Taf"i*a\, n. [Cf. F. & Sp. tafia, It. taffia; fr. Malay
   t[=a]f[imac]a a spirit distilled from molasses. Cf.
   Ratafia.]
   A variety of rum. [West Indies]
   [1913 Webster]