laches

noun

la·​ches ˈla-chəz How to pronounce laches (audio) ˈlā- How to pronounce laches (audio)
plural laches
: negligence in the observance of duty or opportunity
specifically : undue delay in asserting a legal right or privilege

Examples of laches in a Sentence

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.
The majority did indeed invoke laches, but only as to three of the four categories. — Andrew C. McCarthy, National Review, 17 Dec. 2020 Nevertheless, the Pennsylvania supreme court rejected the Republican lawsuit based on the doctrine of laches. — Andrew C. McCarthy, National Review, 8 Dec. 2020

Word History

Etymology

Middle English lachesse, from Anglo-French laschesce, from lasche lax, ultimately from Latin laxare to loosen — more at lease

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of laches was in the 14th century

Rhymes for laches

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laches
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“Laches.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/laches. Accessed 25 Mar. 2025.

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Legal Definition

laches

noun
la·​ches ˈla-chəz, ˈlā-, -shəz How to pronounce laches (audio)
plural laches
1
: undue delay in asserting a right or privilege compare statute of limitations
2
a
: a doctrine permitting dismissal of a suit because a plaintiff's unreasonable delay in asserting a right or privilege has been detrimental to the defendant's ability to make a defense (as by resulting in the unavailability of witnesses or evidence)
a suit barred by laches
b
: an affirmative defense based on this doctrine
Etymology

Anglo-French lachesce, laschesce negligence, from Old French lasche lax, ultimately from Latin laxare to loosen, from laxus slack

More from Merriam-Webster on laches

Britannica.com: Encyclopedia article about laches

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