(chiefly US) An article of food consisting of coarse ground maize, or a porridge made from it.
1675, The Captivity of Mary Rowlandson, included in The Portable North American Indian Reader, New York: Penguin Books, 1977, page 341,
I asked him to give me a little of his Broth, or Water they [Horses feet] were boiling in; he took a dish, and gave me one spoonful of Samp, and bid me take as much of the Broth as I would.