Mongrel (noun)

1. A dog of mixed or uncertain breed.
2. A person or thing of mixed or uncertain origin or composition.

Origin:

Derived from the middle english word "mong" meaning "mixture" or "mingle".

Examples:

1. The stray dog was a mongrel, with no clear breed.
2. The mongrel dog is known for its loyalty and intelligence.
3. A mongrel can refer to a dog of mixed or uncertain breed.
4. The term mongrel can also be used to describe a person or thing of mixed or uncertain origin or composition.
5. The term mongrel is often considered derogatory and offensive.