Amrita
Amrita (Sanskrit: अमृत, IAST: amṛta), or Amrith, is a word that literally means "immortality" and is often referred to in texts as nectar. The word's earliest occurrence is in the Rigveda, where it is one of several synonyms for soma, the drink of the Devas. Not only Amrita gives immortality to the Devas, but also by partaking the nectar the gods were able to attain a higher level of knowledge and power, which they had lost due to the curse of Rishi Durvasa.
Amrita features in the samudra manthana legend, which describes how the Devas begin to lose their immortality, due to a curse by Durvasa. Assisted by their mortal enemies, the Asuras, they churn the ocean and release (among other auspicious objects and beings) Amrita, the nectar of immortality. Amrita was the last of the fourteen treasures that emerged from the churning of the ocean and contained in a pot borne by Dhanvantari, the physician of the Devas.