Aptitude (noun)

1. A natural ability or talent for doing something, especially a skill that can be developed.
2. A readiness or quickness in learning, understanding, or adapting to new things.

Origin:

From the latin word aptitudo meaning "a fitness" or "a suitability".

Examples:

1. He had a natural aptitude for mathematics.
2. The word "aptitude" comes from the Latin word aptitudo meaning "a fitness" or "a suitability".
3. The company looks for applicants with a proven aptitude for problem-solving.
4. She has an aptitude for languages.
5. The school offers aptitude tests to help students choose a career.