Many of us know that catsup, which is the same thing as ketchup, is sometimes used in place of the more conventional term.

In short, yes. Tomato-based catsup and ketchup are more or less the same condiment. There may be slight recipe variations on the traditional tomato-based version, but the main difference between ...

Władysław Kopaliński in his ‘Słownik Wyrazów Obcych’ (Dictionary of Foreign Words) lists a few variations of this sauce’s name: ‘catsup’, ‘catchup’, ‘katsup’ and the now common ketchup. They are ...