Source : Webster's Revised Unabridged Dictionary (1913)

Obi \O"bi\, n. [Jap.]
   A sash, esp. the long broad sash of soft material worn by
   women.

Obi \O"bi\, n. [Prob. of African origin.]
   1. A species of sorcery, probably of African origin,
      practiced among the negroes of the West Indies. [Written
      also {obe} and {obeah}.] --De Quincey. --B. Edwards.

Source : WordNet®

obi
     n : a religious belief of African origin involving witchcraft
         and sorcery; practiced in parts of the West Indies and
         tropical Americas [syn: {obeah}]