Definition of "prove"

[VV]e are able with playne demonſtration to proue, and vvith reaſon to perſvvade that in tymes paſt our fayth vvas alike, that then vve preached thinges correſpondent vnto the forme of faith already published of vs, ſo that none in this behalfe can repyne or gaynesay vs.

1577, Socrates Scholasticus [i.e., Socrates of Constantinople], “Constantinus the Emperour Summoneth the Nicene Councell, it was Held at Nicæa a Citie of Bythnia for the Debatinge of the Controuersie about the Feast of Easter, and the Rootinge out of the Heresie of Arius”, in Eusebius Pamphilus, Socrates Scholasticus, Evagrius Scholasticus, Dorotheus, translated by Meredith Hanmer, The Avncient Ecclesiasticall Histories of the First Six Hundred Yeares after Christ, Wrytten in the Greeke Tongue by Three Learned Historiographers, Eusebius, Socrates, and Euagrius. [...], book I (The First Booke of the Ecclesiasticall Historye of Socrates Scholasticvs), imprinted at London: By Thomas Vautroullier dwelling in the Blackefriers by Ludgate, page 225

Mr. H …, whom no distinctions of that sort seemed to disturb, scarce gave himself or me breathing time from the last encounter, but, as if he had task'd himself to prove that the appearances of his vigour were not signs hung out in vain, in a few minutes he was in a condition for renewing the onset

1749, [John Cleland], “(Please specify the letter or volume)”, in Memoirs of a Woman of Pleasure [Fanny Hill], London: […] G. Fenton [i.e., Fenton and Ralph Griffiths] […]

Valentine’s Day means different things for different people. For Homer, it means forking over a hundred dollars for a dusty box of chocolates at the Kwik-E-Mart after characteristically forgetting the holiday yet again. For Ned, it’s another opportunity to prove his love for his wife. Most germane to the episode, for Lisa, Valentine’s Day means being the only person in her entire class to give Ralph a Valentine after noticing him looking crestfallen and alone at his desk.

2012 August 5, Nathan Rabin, “TV: Review: THE SIMPSONS (CLASSIC): “I Love Lisa” (season 4, episode 15; originally aired 02/11/1993)”, in (Please provide the book title or journal name)

WikiLeaks did not cause these uprisings but it certainly informed them. The dispatches revealed details of corruption and kleptocracy that many Tunisians suspected, but could not prove, and would cite as they took to the streets. They also exposed the blatant discrepancy between the west's professed values and actual foreign policies.

2013 June 7, Gary Younge, “Hypocrisy lies at heart of Manning prosecution”, in The Guardian Weekly, volume 188, number 26, page 18

But ſhall I prooue a traitor to my King?

c. 1587–1588, [Christopher Marlowe], Tamburlaine the Great. […] The First Part […], 2nd edition, part 1, London: […] [R. Robinson for] Richard Iones, […], published 1592; reprinted as Tamburlaine the Great (A Scolar Press Facsimile), Menston, Yorkshire, London: Scolar Press, 1973, (please specify the page)

This battle did not take place in the streets. It took place entirely in words, and it was to prove the turning point in the war.

1964, Jean Merrill, The Pushcart War, 2014 The New York Review Children's Collection edition, chapter 33, page 199

He met Luis Suarez's cross at the far post, only for Chelsea keeper Petr Cech to show brilliant reflexes to deflect his header on to the bar. Carroll turned away to lead Liverpool's insistent protests that the ball had crossed the line but referee Phil Dowd and assistant referee Andrew Garratt waved play on, with even a succession of replays proving inconclusive.

2012 May 5, Phil McNulty, “Chelsea 2-1 Liverpool”, in BBC Sport

Then may I dare to boast how I do love thee,Till then not show my head where thou may'st prove me.

1609, William Shakespeare, “Sonnet 26”, in Shake-speares Sonnets. […], London: By G[eorge] Eld for T[homas] T[horpe] and are to be sold by William Aspley

Wounded and overthrown, the Britons continued their resistance, clung round the legs of the Norman steeds, and cumbered their advance; while their brethren, thrusting with pikes, proved every joint and crevice of the plate and mail, or grappling with the men-at-arms, strove to pull them from their horses by main force, or beat them down with their bills and Welch hooks.

1825 June 22, [Walter Scott], chapter IV, in Tales of the Crusaders. […], volume I (The Betrothed), Edinburgh: […] [James Ballantyne and Co.] for Archibald Constable and Co.; London: Hurst, Robinson, and Co., page 71

Where she, captived long, great woes did prove.

1596, Edmund Spenser, “Book IV, Canto VI”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, stanza 34

You may also need to think about what the prove is doing to the loaf of bread — it is warming the dough and making it moist, allowing it to rise […]

2009, Paul Allam, David McGuinness, Bourke Street Bakery: the ultimate baking companion