trea·​tise | \ ˈtrē-təs How to pronounce treatise (audio) also -təz \

Definition of treatise

1 : a systematic exposition or argument in writing including a methodical discussion of the facts and principles involved and conclusions reached a treatise on higher education
2 obsolete : account, tale

Examples of treatise in a Sentence

Recent Examples on the Web The subject of suffering has troubled even such devout Christian thinkers as Thomas Aquinas and C.S. Lewis, who both wrote famous treatises on the issue, while atheists have argued the existence of misery proves God doesn’t exist. James Ward, Detroit Free Press, "‘I Still Believe’ fails to pull heartstrings," 12 Mar. 2020 The Old Testament as well as treatises by Thucydides, Hippocrates, and Galen all contain suggestions to avoid those afflicted with runny noses, coughs and sneezes, weird rashes, and many other symptoms. Howard Markel, Wired, "With Covid-19, Tech Is Making History Repeat Itself," 4 Mar. 2020 Individual members were encouraged to engage with all aspects of the effort, to ensure that the treatise would be accessible to nonspecialists. David Gunderman, The Conversation, "Nicolas Bourbaki: The greatest mathematician who never was," 7 Dec. 2019 And Stoller’s treatise is a good place to start in thinking through that question. Kyle Sammin, National Review, "Amid a Revival of Anti-Monopoly Sentiment, a New Book Traces Its History," 15 Oct. 2019 Thousands of Locke’s letters, manuscripts, notes and treatises exist online and in library archives, Walmsley said. Lauren Lumpkin, Washington Post, "A mystery centuries in the making is solved amid the rare books at St. John’s College," 19 Sep. 2019 In his celebrated 2013 treatise Capital in the Twenty-First Century, French economist Thomas Piketty shifts the gaze to capitalists. Joseph E. Stiglitz, Scientific American, "The American Economy Is Rigged," 1 Nov. 2018 The title was a misnomer, as this two-volume treatise clocked in at over 700 pages. Joshua Kendall, Time, "America's Devastating First Plague and the Birth of Epidemiology," 4 Apr. 2020 This remarkable treatise was followed by an equally remarkable duration of silence. John Phillips, Car and Driver, "Tested: 1995 Land Rover Defender 90 Goes Nowhere, Man," 24 Mar. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'treatise.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of treatise

14th century, in the meaning defined at sense 1

History and Etymology for treatise

Middle English tretis, from Anglo-French tretiz, alteration of tretez, traitet, from Medieval Latin tractatus, from Latin tractare to treat, handle

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Time Traveler for treatise

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The first known use of treatise was in the 14th century

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Last Updated

11 May 2020

Cite this Entry

“Treatise.” Dictionary, Merriam-Webster, Accessed 4 Jun. 2020.

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How to pronounce treatise (audio)

English Language Learners Definition of treatise

: a book, article, etc., that discusses a subject carefully and thoroughly

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