Source : Webster's Revised Unabridged Dictionary (1913)

Mahwa tree \Mah"wa tree`\ (Bot.)
   An East Indian sapotaceous tree ({Bassia latifolia}, and also
   {B. butyracea}), whose timber is used for wagon wheels, and
   the flowers for food and in preparing an intoxicating drink.
   It is one of the butter trees. The oil, known as mahwa and
   yallah, is obtained from the kernels of the fruit.