decimate

verb

dec·​i·​mate ˈde-sə-ˌmāt How to pronounce decimate (audio)
decimated; decimating

transitive verb

1
: to select by lot and kill every tenth man of
decimate a regiment
2
: to exact a tax of 10 percent from
poor as a decimated CavalierJohn Dryden
3
a
: to reduce drastically especially in number
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
firebombs decimated the city
an industry decimated by recession
decimation noun

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.
Endangered salmon decimated by early logging are slowly returning to the already at-risk Noyo River, downslope from the Camp 8 forest. John P. O’Brien, Mercury News, 13 Sep. 2025 Apart from decimating hundreds of species, the construction of an airport, a power plant, a ship repair yard, and a township will also cut off the tiny Shompen tribe from much of their habitat. M. Rajshekhar, Time, 11 Sep. 2025 That has monumentally changed college sports, of course, funneling schools into the Big Ten and SEC while decimating conferences like our old Pac-12 – but not the appeal of Pac-12 After Dark. Jim Alexander, Oc Register, 11 Sep. 2025 Poaching later decimated the wildlife here, until 2003, when NGO African Parks began comanaging Liuwa alongside the Zambian Department of National Parks and Wildlife and the Barotse Royal Establishment. Mazuba Kapambwe, AFAR Media, 10 Sep. 2025 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

Browse Nearby Words

Podcast

Cite this Entry

“Decimate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/decimate. Accessed 17 Sep. 2025.

Kids Definition

decimate

verb
dec·​i·​mate ˈdes-ə-ˌmāt How to pronounce decimate (audio)
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
decimation noun

More from Merriam-Webster on decimate

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!