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conjecture

[kuh n-jek-cher] /kənˈdʒɛk tʃər/
noun
1.
the formation or expression of an opinion or theory without sufficient evidence for proof.
2.
an opinion or theory so formed or expressed; guess; speculation.
3.
Obsolete. the interpretation of signs or omens.
verb (used with object), conjectured, conjecturing.
4.
to conclude or suppose from grounds or evidence insufficient to ensure reliability.
verb (used without object), conjectured, conjecturing.
5.
to form conjectures.
Origin
1350-1400
1350-1400; (noun) Middle English < Latin conjectūra (< Middle French) inferring, reasoning, equivalent to conject(us) past participle of conjicere to throw together, form a conclusion (con- con- + -jicere, combining form of jacere to throw) + -ūra -ure; (v.) late Middle English conjecturen (< Middle French) < Late Latin conjecturāre, derivative of the noun
Related forms
conjecturable, adjective
conjecturably, adverb
conjecturer, noun
misconjecture, verb, misconjectured, misconjecturing; noun
nonconjecturable, adjective
nonconjecturably, adverb
preconjecture, verb (used with object), preconjectured, preconjecturing.
unconjecturable, adjective
unconjectured, adjective
Synonyms
2. surmise, inference, supposition, theory, hypothesis. 4. surmise, suppose, presume. See guess.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for conjecturer

conjecture

/kənˈdʒɛktʃə/
noun
1.
the formation of conclusions from incomplete evidence; guess
2.
the inference or conclusion so formed
3.
(obsolete) interpretation of occult signs
verb
4.
to infer or arrive at (an opinion, conclusion, etc) from incomplete evidence
Derived Forms
conjecturable, adjective
conjecturably, adverb
conjecturer, noun
Word Origin
C14: from Latin conjectūra an assembling of facts, from conjicere to throw together, from jacere to throw
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for conjecturer

conjecture

n.

late 14c., "interpretation of signs and omens," from Old French conjecture "surmise, guess," or directly from Latin coniectura "conclusion, interpretation, guess, inference," literally "a casting together (of facts, etc.)," from coniectus, past participle of conicere "to throw together," from com- "together" (see com-) + iacere "to throw" (see jet (v.)). Sense of "forming of opinion without proof" is 1530s.

v.

early 15c., from conjecture (n.). In Middle English also with a parallel conjecte (n.), conjecten (v.). Related: Conjectured; conjecturing.

Online Etymology Dictionary, © 2010 Douglas Harper
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