Sauce

In cooking, a sauce is a liquid, cream, or semi-solid food, served on or used in preparing other foods. Most sauces are not normally consumed by themselves; they add flavour, texture, and visual appeal to a dish. Sauce is a French word probably from the post-classical Latin salsa, derived from the classical salsus 'salted'. Possibly the oldest recorded European sauce is garum, the fish sauce used... (Wikipedia)