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

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

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.
The conflict between the United States and Iran is spiraling, experts warned Monday, as a deadly and expanding exchange of strikes over the weekend appeared to decimate the interim deal between the two nations. Chantal Da Silva, NBC news, 20 July 2026 Season 2 saw Aemond purposefully incinerating his brother, leaving him badly burned, and decimating the Riverlands while on Vhagar. Emily Zemler, Los Angeles Times, 20 July 2026 His team was decimated by injuries but remained competitive and ended its season at the College Basketball Crown tournament in Las Vegas. Andy Greder, Twin Cities, 20 July 2026 The shaggy bovines of the plains and boreal forests were nearly hunted to extinction in a frenzy of killing that decimated their population. Matthew Wills, JSTOR Daily, 20 July 2026 See All Example Sentences for decimate

Word History

Etymology

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

First Known Use

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 23 Jul. 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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