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[prog-nos-ti-keyt] /prɒgˈnɒs tɪˌkeɪt/
verb (used with object), prognosticated, prognosticating.
to forecast or predict (something future) from present indications or signs; prophesy.
to foretoken; presage:
birds prognosticating spring.
verb (used without object), prognosticated, prognosticating.
to make a forecast; prophesy.
Origin of prognosticate
late Middle English
1375-1425; late Middle English < Medieval Latin prognōsticātus, past participle of prognōsticāre. See prognostic, -ate1
Related forms
prognosticative, prognosticatory
[prog-nos-ti-kuh-tawr-ee, -tohr-ee] /prɒgˈnɒs tɪ kəˌtɔr i, -ˌtoʊr i/ (Show IPA),
prognosticator, noun
nonprognosticative, adjective
unprognosticated, adjective
unprognosticative, adjective
1. foretell, foresee, project. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for prognosticate
Historical Examples
  • If your enemies be fighting, while you sit still or sleep, it is easy to prognosticate who will have the victory.

  • Of the mineral wealth, it seems as yet dangerous to prognosticate.

  • He and I were chums; we used to sit on Long Wharf together and prognosticate together.

    True to His Home Hezekiah Butterworth
  • Nevertheless, reasoning a priori, there are some features we may prognosticate.

    Wanderings in Ireland Michael Myers Shoemaker
  • By their departure from temperate or cold climates they prognosticate the approach of winter, as their return heralds spring.

    Reptiles and Birds Louis Figuier
  • Is this to prognosticate peace, or to mock at my unhappiness?

    Frankenstein Mary Shelley
  • I may safely with the little skill I have, quoth Pantagruel, prognosticate that by the way we shall engender no melancholy.

  • To prognosticate medically according to this system a circle of numerals was required in the first place.

  • When I heard these words I did prognosticate my miserie to come.

    The Golden Asse Lucius Apuleius
  • From that moment it was easy to prognosticate that with the new king familiarity would not prevent severity, or even cruelty.

    A Popular History of France From The Earliest Times Francois Pierre Guillaume Guizot
British Dictionary definitions for prognosticate


to foretell (future events) according to present signs or indications; prophesy
(transitive) to foreshadow or portend
Derived Forms
prognostication, noun
prognosticative, adjective
prognosticator, noun
Word Origin
C16: from Medieval Latin prognōsticāre to predict
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
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Word Origin and History for prognosticate

early 15c., a back-formation from prognostication and also from Medieval Latin prognosticatus, past participle of prognosticare (see prognostication). Related: Prognosticated; prognosticating.

Online Etymology Dictionary, © 2010 Douglas Harper
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prognosticate in Medicine

prognosticate prog·nos·ti·cate (prŏg-nŏs'tĭ-kāt')
v. prog·nos·ti·cat·ed, prog·nos·ti·cat·ing, prog·nos·ti·cates
To predict according to present indications or signs; foretell.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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