The Collaborative International Dictionary of English v.0.48:

Samp \Samp\ (s[a^]mp), n. [Massachusetts Indian nas[`a]ump
   unparched meal porridge.]
   An article of food consisting of maize broken or bruised,
   which is cooked by boiling, and usually eaten with milk;
   coarse hominy. [U. S.]
   [Webster 1913 Suppl.]