Answer: perpetuity

AnswerCrossword Clue
PERPETUITYTime without end
perpetuityA restriction making an estate inalienable perpetually or for a period beyond certain limits fixed by law
perpetuitythe state of being perpetual
perpetuityA thing that lasts forever or for an indefinite period, in particular
perpetuityThe state or quality of lasting forever
perpetuityA bond or other security with no fixed maturity date
perpetuityAn estate so restricted