"a holistic system of medicine based on the healing power of nature. the system is built on the ancient belief in the healing power of nature and that natural organisms have the ability to heal themselves and maintain health."

The answer is Naturopathy.

Explanation:

Naturopathy is an alternative form of medicine that uses natural, non-invasive treatments to heal the human body.

Naturopathy comes from the Latin word "natura" and the Greek word "pathos", suggesting a natural healing of the body.

this is really easy just look up what these words mean