Ingredient (noun)

1. A component of a mixture or compound.
2. A substance that forms part of a mixture.

Origin:

From old french ingredient, from latin ingrēdiens, present participle of ingrēdi ("to go into, enter") + -ent-.

Examples:

1. Sugar is one of the main ingredients in cookies.
2. The recipe calls for two cups of flour, one of the key ingredients in making bread.
3. The ingredient list on the label must include all the substances present in the product.
4. The secret ingredient in her famous chili recipe is a dash of cocoa powder.
5. The ingredients of the love potion included rose petals, lavender and moonstone.