noun, plural per·pe·tu·i·ties.
the state or character of being perpetual (often preceded by in): to desire happiness in perpetuity.
endless or indefinitely long duration or existence; eternity.
something that is perpetual.
an annuity paid for life.
Law. an interest under which property is less than completely alienable for longer than the law allows.
Origin of perpetuity
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
noun plural -ties
the state or quality of being perpetual
property law a limitation preventing the absolute disposal of an estate for longer than the period allowed by law
an annuity with no maturity date and payable indefinitely
in perpetuity for ever
Word Origin for perpetuity
C15: from Old French perpetuite, from Latin perpetuitās continuity; see perpetual
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
late 14c., from Old French perpetuité "permanence, duration" (13c., Modern French perpétuité) and directly from Latin perpetuitatem (nominative perpetuitas) "uninterrupted duration, continuity, continuous succession," from perpetuus (see perpetual).
Online Etymology Dictionary, © 2010 Douglas Harper