Marshmallow (noun)

1. A confectionery made from sugar, corn syrup, and gelatin, often shaped into small cylindrical pieces and coated with cornstarch.
2. A fluffy confection made from sugar, corn syrup, and gelatin, typically used as a filling for sweets.

Origin:

Derived from the french word 'marshmallow', which in turn is derived from the latin word 'althaea' meaning the marshmallow plant, a plant which was used to make the original confectionery treat.

Examples:

1. She loves roasting marshmallows over the campfire.
2. The hot chocolate was perfect with a big marshmallow in it.
3. The dessert was a chocolate cake with a marshmallow filling.
4. The children were excited to see marshmallows in their hot chocolate.
5. The marshmallow factory is known for producing the softest and fluffiest marshmallows.