Source : Webster's Revised Unabridged Dictionary (1913)

Tuckahoe \Tuck"a*hoe\, n. [North American Indian, bread.] (Bot.)
   A curious vegetable production of the Southern Atlantic
   United States, growing under ground like a truffle and often
   attaining immense size. The real nature is unknown. Called
   also {Indian bread}, and {Indian loaf}.