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cogent

[koh-juh nt]
adjective
  1. convincing or believable by virtue of forcible, clear, or incisive presentation; telling.
  2. to the point; relevant; pertinent.
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Origin of cogent

1650–60; < Latin cōgent- (stem of cōgēns, present participle of cōgere to drive together, collect, compel), equivalent to cōg- (co- co- + ag-, stem of agere to drive) + -ent- -ent
Related formsco·gent·ly, adverbnon·co·gent, adjectivenon·co·gent·ly, adverbun·co·gent, adjectiveun·co·gent·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for non-cogent

cogent

adjective
  1. compelling belief or assent; forcefully convincing
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Derived Formscogency, nouncogently, adverb

Word Origin

C17: from Latin cōgent-, cōgēns, driving together, from cōgere, from co- together + agere to drive
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

Word Origin and History for non-cogent

cogent

adj.

1650s, from French cogent "necessary, urgent" (14c.), from Latin cogentem (nominative cogens), present participle of cogere "to curdle; to compel; to collect," literally "to drive together," from com- "together" (see co-) + agere "to drive" (see act (n.)).

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Online Etymology Dictionary, © 2010 Douglas Harper