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perpetuity

[pur-pi-too-i-tee, -tyoo-]
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noun, plural per·pe·tu·i·ties.
  1. the state or character of being perpetual (often preceded by in): to desire happiness in perpetuity.
  2. endless or indefinitely long duration or existence; eternity.
  3. something that is perpetual.
  4. an annuity paid for life.
  5. Law. an interest under which property is less than completely alienable for longer than the law allows.
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Origin of perpetuity

1375–1425; late Middle English perpetuite < Latin perpetuitās. See perpetual, -ity
Related formsnon·per·pe·tu·i·ty, noun, plural non·per·pe·tu·i·ties.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for in-perpetuity

perpetuity

noun plural -ties
  1. eternity
  2. the state or quality of being perpetual
  3. property law a limitation preventing the absolute disposal of an estate for longer than the period allowed by law
  4. an annuity with no maturity date and payable indefinitely
  5. in perpetuity for ever
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Word Origin

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

Word Origin and History for in-perpetuity

perpetuity

n.

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).

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Online Etymology Dictionary, © 2010 Douglas Harper