Catsup, Catchup n. (Written also ketchup) A pureed table sauce made predominantly from tomatoes, flavored with onions, sugar, salt and spices; called also tomato ketchup. The term is also applied to pureed sauces containing mushrooms, walnuts, etc., being called in such cases mushroom ketchup, walnut ketchup, etc.
... WAY TO USE COLD MEAT.—Take the remnants of any fresh roasted meat and cut in thin slices. Lay them in a dish with a little plain boiled macaroni, if you have it, and season thoroughly with pepper, salt, and a little walnut catsup. Fill a deep dish half full; add a very little finely chopped onion, and pour over half a can of tomatoes or tomatoes sliced, having previously saturated the meat with stock or gravy. Cover with a thick crust of mashed potato, and bake till this is brown in a not too hot oven, but neither ... — Donahoe's Magazine, Volume 15, No. 1, January 1886 • Various