the.com/elixir of life

means A legendary potion or substance believed capable of granting immortality or eternal youth to whoever drinks it.

from Traces back to Arabic al-iksir, itself possibly rooted in the Greek xerion, meaning a dry powder used for healing wounds. Medieval alchemists latched onto the word for their quest to find a substance that could cure all ills, transmute base metals into gold, and ultimately stop death itself — the elixir became the holy grail of alchemy, chased for centuries, never found, the dream outliving every alchemist who sought it.