decimate

1 of 2

verb

decimated; decimating
Synonyms of decimate

transitive verb

1
history : to select by lot and kill every tenth member of
decimate a regiment
2
: to exact a tax of 10 percent from
… poor as a decimated Cavalier …—John Dryden
3
a
: to reduce drastically especially in number
An outbreak of cholera decimated the population.
Kamieniecki's return comes at a crucial time for a pitching staff that has been decimated by injuries.—Jason Diamos
b
: to cause great destruction or harm to
A fire decimated the city.
an industry decimated by recession

decimation

2 of 2

noun

plural -s
1
a
: the taking of tithes or of a tax of one tenth
b
: the tithe or tax taken
2
: a selection of every tenth person
especially : selection by lot for punishment with death
3
: the destruction of a considerable part : reduction to the point of almost complete extermination
decimation of the forest Indians, brought about by disease—Farley Mowat
4
a
: the act of decimating cryptographically
b
: the new sequence resulting from decimating

Did you know?

Decimate is a word that often raises hackles, at least those belonging to a small but committed group of logophiles who feel that it is commonly misused. The issue that they have with the decline and fall of the word decimate is that once upon a time in ancient Rome it had a very singular meaning: “to select by lot and kill every tenth man of a military unit.” However, many words in English descended from Latin have changed and/or expanded their meanings in their travels. For example, we no longer think of sinister as meaning “on the left side,” and delicious can describe things both tasty and delightful. Was the “to kill every tenth man” meaning the original use of decimate in English? Yes, but not by much. It took only a few decades for decimate to acquire its broader, familiar meaning of “to severely damage or destroy,” which has been employed steadily since the 17th century.

Examples of decimate in a Sentence

Verb This kind of moth is responsible for decimating thousands of trees in our town. Budget cuts have decimated public services in small towns.
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.
Verb
The offensive line sort of got decimated, and now the cornerbacks have gotten decimated. — Scott Fowler, Charlotte Observer, 2 Oct. 2026 Russia has been targeting presses and publishing houses across Ukraine for the past month, in a campaign that’s increasingly concerned with decimating Ukrainian culture. — Brittany Allen, Literary Hub, 1 Oct. 2026 This opaqueness from earlier in the season pays off in the form of John recounting the brutal methods the Manhunter used to decimate this planet, involving a fear gas that made people kill one another and jump to their deaths. — Siddhant Adlakha, Vulture, 28 Sep. 2026 The Justice Department, for instance, decimated its elite Public Integrity Section in early 2025 while the FBI disbanded a white-collar fraud and public corruption squad based out of its Washington field office. — Patrick Whittle, Arkansas Online, 24 Sep. 2026 See All Example Sentences for decimate

Word History

Etymology

Verb

Latin decimatus, past participle of decimare, from decimus tenth, from decem ten

Noun

Late Latin decimation-, decimatio, from Latin decimatus (past participle of decimare to pay as a tithe, select by lot and kill every tenth man of) + -ion-, -io -ion

First Known Use

Verb

1660, in the meaning defined at sense 1

Time Traveler
The first known use of decimate was in 1660

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Cite this Entry

“Decimate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/decimate. Accessed 3 Oct. 2026.

Kids Definition

decimate

verb
decimated; decimating
1
: to pick by lot and kill every tenth man of
the Roman army would decimate a legion for cowardice
2
: to destroy a large part of
a population decimated by an epidemic
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