Source : Webster's Revised Unabridged Dictionary (1913)

Boza \Bo"za\, n. [See {Bosa}.]
   An acidulated fermented drink of the Arabs and Egyptians,
   made from millet seed and various astringent substances;
   also, an intoxicating beverage made from hemp seed, darnel
   meal, and water. [Written also {bosa}, {bozah}, {bouza}.]