perpetuity

noun

per·​pe·​tu·​i·​ty ˌpər-pə-ˈtü-ə-tē How to pronounce perpetuity (audio)
-ˈtyü-
plural perpetuities
1
2
: the quality or state of being perpetual
bequeathed to them in perpetuity
3
a
: the condition of an estate limited so that it will not take effect or vest within the period fixed by law
b
: an estate so limited
4
: an annuity payable forever

Did you know?

Perpetuity is a “forever” word—not in the sense that it relates to a lifelong relationship (as in “forever home”), but because it concerns the concept of, well, forever. Not only can perpetuity refer to infinite time, aka eternity, but it also has specific legal and financial uses, as for certain arrangements in wills and for annuities that are payable forever, or at least for the foreseeable future. The word ultimately comes from the Latin adjective perpetuus, meaning “continual” or “uninterrupted.” Perpetuus is the ancestor of several additional “forever” words, including the verb perpetuate (“to cause to last indefinitely”) and the adjective perpetual (“continuing forever,” “occurring continually”). A lesser known descendent, perpetuana, is now mostly encountered in historical works, as it refers to a type of durable wool or worsted fabric made in England only from the late 16th through the 18th centuries. Alas, nothing is truly forever.

Examples of perpetuity in a Sentence

lands that should remain in their wild state in perpetuity
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
As the film explores, Chauvet remained pristine because about 28,000 years ago a cliff collapsed sealing the entrance in virtual perpetuity until it was discovered by speleologists including Jean-Marie Chauvet. Matthew Carey, Deadline, 4 Sep. 2025 That record will stand for perpetuity now that the course is midway through a $30 million renovation that will see two new wholly separate golf courses with their own singular vibes, the nearly complete Ocean Course and the inland Vineyard Course. Mike Dojc, Forbes.com, 27 Aug. 2025 The texture of the ropa vieja was just right — not too soupy, but also not getting caught in your teeth for perpetuity, like some ropier ropas viejas. Hannah Edgar, Chicago Tribune, 26 July 2025 To achieve this aim, Washington should apply economic and, if necessary, military pressure until Iran comes clean on its weaponization programs and abandons all or almost all uranium enrichment for perpetuity. James Jeffrey, Foreign Affairs, 4 July 2025 See All Example Sentences for perpetuity

Word History

Etymology

Middle English perpetuite, from Anglo-French perpetuité, from Latin perpetuitat-, perpetuitas, from perpetuus

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of perpetuity was in the 15th century

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Cite this Entry

“Perpetuity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/perpetuity. Accessed 19 Sep. 2025.

Kids Definition

perpetuity

noun
per·​pe·​tu·​ity
ˌpər-pə-ˈt(y)ü-ət-ē
plural perpetuities
1
: perpetual existence
2
: endless time : eternity

Legal Definition

perpetuity

noun
per·​pe·​tu·​i·​ty ˌpər-pə-ˈtü-ə-tē, -ˈtyü- How to pronounce perpetuity (audio)
plural perpetuities
1
: the quality, state, or duration of being perpetual
devised to them in perpetuity
2
a
: the condition of a future estate limited in such a way as not to vest within the period fixed by law for the vesting of an estate
also : a limitation that gives rise to such a situation
b
: an estate that will not vest within the period fixed by law see also rule against perpetuities, statutory rule against perpetuities
3
: an annuity payable forever

More from Merriam-Webster on perpetuity

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