Filbert (noun)

1. The nut of the hazel tree, also known as a hazelnut.
2. A tree or shrub that bears filberts.

Origin:

From the latin word filbertus, meaning "hazelnut".

Examples:

1. The filbert is a popular nut in confections and pastries.
2. The filbert tree is native to Europe and western Asia.
3. Filberts are a common ingredient in chocolate bars.
4. Filberts are often used in baking and cooking.
5. Filberts are a good source of healthy fats and protein.