SINCE1828
treatise noun
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trea·​tise | \ ˈtrē-təs
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
2obsolete : ACCOUNT, TALE
Examples of treatise in a Sentence
Recent Examples on the Web
This same interpretation helps illuminate one of Poe’s final works, an esoteric treatise on cosmology called Eureka: An Essay on the Material and Spiritual Universe.
— Daniel Engber, The Atlantic, 11 June 2021
Yes, that can be done, but remember, this a lazy farmer treatise.
— John Schandelmeier, Anchorage Daily News, 30 May 2021
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
The first known use of treatise was in the 14th century
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From the Editors at Merriam-Webster
'Treatment' vs. 'Cure'
Dictionary Entries Near treatise
treasury warrant
treat
treatable
treatise
treatment
treat (someone) like dirt
treat someone like dirt
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Statistics for treatise
Last Updated
15 Jun 2021
Look-up Popularity
Top 2% of words
Cite this Entry
“Treatise.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/treatise. Accessed 19 Jun. 2021.
Style: MLA
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More Definitions for treatise
treatise noun
English Language Learners Definition of treatise
: a book, article, etc., that discusses a subject carefully and thoroughly
See the full definition for treatise in the English Language Learners Dictionary
More from Merriam-Webster on treatise
Thesaurus: All synonyms and antonyms for treatise
Nglish: Translation of treatise for Spanish Speakers
Britannica English: Translation of treatise for Arabic Speakers
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