Primal (adjective)

1. Being the first or earliest of its kind.
2. Being the most basic or fundamental.
3. Being the original or earliest form of something.

Origin:

The word primal comes from the latin word primus, meaning "first" and it has been in use since the 17th century.

Examples:

1. The primal force of nature.
2. The primal urge to survive.
3. The primal elements of the universe.
4. The primal needs of the human being.
5. The primal instincts of animals.