Perpetuity /(?)/

Per·pe·tu·i·ty

Perpetuity

n.
  1. The quality or state of being perpetual; as, the perpetuity of laws.
    A path to perpetuity of fame.
    The perpetuity of a single emotion is insanity.
  2. Something that is perpetual.
  3. Endless time.
  4. The number of years in which the simple interest of any sum becomes equal to the principal. (Annuities)
  5. Duration without limitations as to time. (Law)