Elixir (noun)

1. A magical or medicinal potion.
2. A liquid, especially one used for medicinal purposes.

Origin:

Late middle english: via old french from latin elixir, from arabic al-iksīr "philosopher's stone", from al- "the" + iksīr "powder".

Examples:

1. The witch promised her a potion that would grant her eternal life, an elixir of youth.
2. For centuries, people have searched for the elixir of life, the potion that would grant immortality.
3. This elixir has been used as a cure for many ailments.
4. The ancient Egyptians believed that the gods drank a potion called the elixir of life.
5. The king sent his alchemists to search for the elixir of life.