When the noun conjecture entered English in the 14th century, it referred to the act of interpreting signs or omens especially to make prognostications. That sense is now obsolete, but by the 16th century both the noun and verb conjecture had acquired the meanings of speculation and inference that we use today. Conjecture derives via Middle English and Middle French from the Latin verb conicere ("to throw together"), a combination of com- ("together") and jacere ("to throw").
NounWhether Columbus brought syphilis to the New World—or to the Old World—has been the subject of conjecture for at least 500 years. Carl Zimmer, Science, 11 May 2001… their voices rose in a chorus of conjecture and alarm, repeating the selfsame remark: "What is she going to do? I mean, is Betty going to faint?" Edna O'Brien, New Yorker, 1 Jan. 1990The reason why the French with superior man-power and American resources were doing so poorly was not beyond all conjecture. Barbara W. Tuchman, The March of Folly, 1984Peculiar features of early maps, which may have been nothing but a draftsman's whimsy, have inspired pages of vain conjecture. Samuel Eliot Morison, The European Discovery of America, 1971 The biography includes conjectures about the writer's earliest ambitions. a conjecture about the extent of the injury Most of the book is conjecture, not fact. VerbIt is fashionable now to conjecture that the Big Bang was caused by a random quantum fluctuation in a vacuum devoid of space and time. Martin Gardner, Skeptical Inquirer, November/December 1998… their traces left for future archaeologists to rediscover and perhaps to wonder or conjecture over. Jane Jacobs, Cities and the Wealth of Nations, 1984I am anxious to conjecture beforehand what may be expected from the sowing turneps [sic] in jaded ground, how much from the acre, & how large they will be? Thomas Jefferson, letter, 29 Dec. 1794 Some have conjectured that the distant planet could sustain life. We only conjecture about his motives. See More
Recent Examples on the Web
Noun
In 2006 Watanabe successfully reformulated Kontsevich’s invariant to apply to Smale’s conjecture.Quanta Magazine, 26 Oct. 2021 Tiger King, on the other hand, gives a megaphone to the conjecture that Carole killed her husband and fed him to the tigers. Peter Frick-wright, Outside Online, 9 Apr. 2020 That led to heated conjecture on social media that Chinese viewers might be getting a version with exclusive bonus scenes. Lyric Li, Washington Post, 24 Aug. 2022 There have been rumors of famous names who were up for roles, and Heckerling is quick to dismiss most of these as conjecture. Ryan Gajewski, The Hollywood Reporter, 13 Aug. 2022 The cast offered some conjecture in an interview with TVLine, including the series creators Darren Star and Jeffrey Richman. Aimée Lutkin, ELLE, 31 July 2022 As one of the PGA Tour's top remaining golfers, Cantlay has been surrounded with LIV Golf conjecture. Mason Young, Detroit Free Press, 27 July 2022 These are two speculative statements of conjecture bookmarked on either end by claims made using nonspecific words like if and could. Christiaan Hetzner, Fortune, 18 July 2022 The final state conjecture depends on Kerr stability and on other sub-conjectures that are extremely challenging in themselves. Steve Nadis, Quanta Magazine, 4 Aug. 2022
Verb
It’s not unreasonable to conjecture that some families have shifted their protein choices in response. Michael Hiltzik, Los Angeles Times, 26 Nov. 2021 Rather than allow the mind to reel and conjecture, provide information to support a valid response. Expert Panel®, Forbes, 26 Oct. 2021 Some economists conjecture that savings from the higher unemployment benefits are giving these workers some breathing room to look for better work. Michael Hiltzik, Los Angeles Times, 12 Oct. 2021 Anyone who might conjecture that Stahl is getting ready to step away from the program would be mistaken. Brian Steinberg, Variety, 8 Sep. 2021 Instead, researchers conjecture, fluvoxamine reduces inflammation. Michael Hiltzik, Los Angeles Times, 18 Aug. 2021 Cam Newton, Sam Darnold and Dak Prescott have all declined to discuss their vax status, leading to conjecture that they are not vaccinated. Elena Kadvany, San Francisco Chronicle, 9 Aug. 2021 Naturally, such a shocking death provoked rumor and conjecture about suicide or murder, which Kanigel duly reviews. Adam Kirsch, The New Yorker, 7 June 2021 In fact, linguists now conjecture that language first arose among hominids to fulfill that most fundamental of impulses: the need to lie. Bill Heavey, Field & Stream, 13 Dec. 2020 See More
Word History
Etymology
Noun and Verb
Middle English, from Middle French or Latin; Middle French, from Latin conjectura, from conjectus, past participle of conicere, literally, to throw together, from com- + jacere to throw — more at jet