proof

proof
I. noun Etymology: Middle English prof, prove, alteration of preve, from Anglo-French preove, from Late Latin proba, from Latin probare to prove — more at prove Date: 13th century 1. a. the cogency of evidence that compels acceptance by the mind of a truth or a fact b. the process or an instance of establishing the validity of a statement especially by derivation from other statements in accordance with principles of reasoning 2. obsolete experience 3. something that induces certainty or establishes validity 4. archaic the quality or state of having been tested or tried; especially unyielding hardness 5. evidence operating to determine the finding or judgment of a tribunal 6. a. plural proofs or proof a copy (as of typeset text) made for examination or correction b. a test impression of an engraving, etching, or lithograph c. a coin that is struck from a highly polished die on a polished planchet, is not intended for circulation, and sometimes differs in metallic content from coins of identical design struck for circulation d. a test photographic print made from a negative 7. a test applied to articles or substances to determine whether they are of standard or satisfactory quality 8. a. the minimum alcoholic strength of proof spirit b. strength with reference to the standard for proof spirit; specifically alcoholic strength indicated by a number that is twice the percent by volume of alcohol present <
whiskey of 90 proof is 45 percent alcohol
>
II. adjective Date: 1592 1. able to resist or repel <
boots that were…proof against cold and wet — Robertson Davies
>
— often used in combination <
windproof
>
2. used in proving or testing or as a standard of comparison 3. of standard strength or quality or alcoholic content III. transitive verb Date: 1745 1. a. to make or take a proof or test of b. proofread 2. to give a resistant quality to 3. to activate (yeast) by mixing with water and sometimes sugar or milk • proofer noun

New Collegiate Dictionary. 2001.

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  • proof — n [alteration of Middle English preove, from Old French preuve, from Late Latin proba, from Latin probare to prove] 1: the effect of evidence sufficient to persuade a reasonable person that a particular fact exists see also evidence 2: the… …   Law dictionary

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  • proof´er — proof «proof», noun, adjective, verb. –n. 1. a way or means of showing beyond doubt the truth of something: »Is what you say a guess, or have you proof? SYNONYM(S): See syn. under evidence. (Cf. ↑evidence) 2. the establishment of the truth of… …   Useful english dictionary

  • Proof — Proof, n. [OF. prove, proeve, F. preuve, fr. L. proba, fr. probare to prove. See {Prove}.] [1913 Webster] 1. Any effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial. [1913 Webster]… …   The Collaborative International Dictionary of English

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  • proof — [pro͞of] n. [ME profe < OFr prueve < LL proba < L probare: see PROBE] 1. the act or process of proving; a testing or trying of something 2. anything serving or tending to establish the truth of something, or to convince one of its truth; …   English World dictionary

  • proof — ► NOUN 1) evidence establishing a fact or the truth of a statement. 2) the proving of the truth of a statement. 3) a series of stages in the resolution of a mathematical or philosophical problem. 3) archaic a test or trial. 4) Printing a trial… …   English terms dictionary

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