er·​go | \ ˈer-(ˌ)gō How to pronounce ergo (audio) , ˈər- How to pronounce ergo (audio) \

Definition of ergo

 (Entry 1 of 2)

: for that reason : because of that : therefore, hence … there is no sound, ergo, no speed of sound, in the vacuum of space.— Stephan Wilkinson

Definition of ergo- (Entry 2 of 2)

: ergot ergosterol

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Examples of ergo in a Sentence


There's no win-win situation for workers of the world, in the current era at least. American steelworkers here do better, ergo Russian and South Korean steelworkers overseas do worse. — Alexander Cockburn, Nation, 3 Jan. 2000 He that comforts my wife is the cherisher of my flesh and blood; he that cherishes my flesh and blood loves my flesh and blood; he that loves my flesh and blood is my friend; ergo, he that kisses my wife is my friend. — William Shakespeare, All's Well that Ends Well, 1603 The products are poorly constructed; ergo, they break easily. according to that line of reasoning, the eyewitness couldn't identify the aircraft, ergo it must have been from another planet
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Recent Examples on the Web: Adverb

Apparently, ergo gets into the food chain other than by mushroom consumption via fungi in the soil. Robert Beelman, CNN, "The humble mushroom is the newest superfood," 25 Apr. 2018 In the hubbub around this controversy, likely many doctors felt too embarrassed to grab the pharma handout—ergo my reborn popularity. Kent Sepkowitz, Slate Magazine, "Confessions of a Washington Swamp Creature," 17 Feb. 2017 The global television audience is (at least) sixteen hundred times as big; ergo, the halftime show is more music video than live concert. Amanda Petrusich, The New Yorker, "Lady Gaga’s All-American Super Bowl Halftime Show," 6 Feb. 2017 Isaacson helps us right away with The Big One: Jobs might have felt abandoned because he was put up for adoption, ergo, sentenced to a life of searching for approval. John C Abell, WIRED, "‘Steve Jobs,’ Steve Jobs, and Me," 27 Oct. 2011

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ergo.' 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 ergo


14th century, in the meaning defined above

History and Etymology for ergo


Middle English, from Latin, from Old Latin, because of, from Old Latin *e rogo from the direction (of)

Combining form

French, from ergot

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

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characterized by aphorism

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