decimate

[ des-uh-meyt ]
/ ˈdɛs əˌmeɪt /

verb (used with object), dec·i·mat·ed, dec·i·mat·ing.

to destroy a great number or proportion of: The population was decimated by a plague.
to select by lot and kill every tenth person of.
Obsolete. to take a tenth of or from.

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Origin of decimate

1590–1600; < Latin decimātus, past participle of decimāre “to punish every tenth man chosen by lot,” verbal derivative of decimus “tenth,” derivative of decem ten; see -ate1

usage note for decimate

The earliest English sense of decimate is “to select by lot and execute every tenth soldier of (a unit).” The extended sense “destroy a great number or proportion of” developed in the 19th century: Cholera decimated the urban population. Because the etymological sense of one-tenth remains to some extent, decimate is not ordinarily used with exact fractions or percentages: Drought has destroyed (not decimated ) nearly 80 percent of the cattle.

OTHER WORDS FROM decimate

dec·i·ma·tion, noundec·i·ma·tor, noun

WORDS THAT MAY BE CONFUSED WITH decimate

decimal decimatedecimate destroy (see usage note at the current entry)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for decimate

British Dictionary definitions for decimate

decimate
/ (ˈdɛsɪˌmeɪt) /

verb (tr)

to destroy or kill a large proportion ofa plague decimated the population
(esp in the ancient Roman army) to kill every tenth man of (a mutinous section)

Derived forms of decimate

decimation, noundecimator, noun

Word Origin for decimate

C17: from Latin decimāre, from decimus tenth, from decem ten

usage for decimate

One talks about the whole of something being decimated, not a part: disease decimated the population, not disease decimated most of the population
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012