disappoint

Etymology

From Middle French desapointer (compare French désappointer); From dis- + appoint.

verb

1. (transitive) To sadden or displease (someone) by underperforming, or by not delivering something promised or hoped for.
   His lack of respect disappointed her.
   I was disappointed by last year’s revenue.
   My father liked his rice light and fluffy, but separate. […] Since he’d gone so long without a taste, the possibility of disappointing him weighed heavily on my mother. 2007, Edwidge Danticat, Brother, I’m Dying, New York: Knopf, Part2, “Transition,”
2. (transitive) To deprive (someone of something expected or hoped for).
   They that haue money in their purse, are afrayde and in doubte, yea and are continuallye martyred with feare, leaste GOD should disappoint them of their pray, and abate their portion. 1574, Arthur Golding, transl., Sermons of Master John Calvin, upon the Booke of Job, London: Lucas Harison and George Byshop, Sermon 32, p. 163
   1637, Thomas Killigrew, The Parson’s Wedding, Act V, Scene 4, in Comedies and Tragedies, London: Henry Herringman, 1664, p. 152, Bless me from an old waiting-womans wrath; she’l never forgive me the disappointing her of a promise when I was drunk;
   1707, extract from Lord Caryll’s letters, in James Macpherson (ed.), Original Papers: containing the secret history of Great Britain, from the restoration, to the accession of the House of Hannover, London: W. Strahan and T. Cadell, 1775, Volume 2, p. 86, You tell me, that the hasty departure of Mr. Rysehoven [Marlborough] out of town disappointed you of speaking to him, of which the loss, I think, is not very great;
   Miss Courteney […] sat down again, tho’ with some reluctance, telling his lordship that she would not be the means of disappointing him of his coffee; but that she must insist upon being permitted to withdraw in half an hour, having business of consequence upon her hands. 1758, Charlotte Lennox, Henrietta, London: A. Millar, Volume 1, Book 2, Chapter 8, p. 178
   Disappointed of immediate promotion he was now more… well, relaxed […] 2000, Alan Bennett, “The Laying On of Hands”, in The Laying On of Hands: Stories, New York: Picador, published 2002, page 94
3. (transitive, dated) To fail to meet (an expectation); to fail to fulfil (a hope).
   1751, Samuel Johnson, The Rambler, No. 127, 4 June, 1751, Volume 4, London: J. Payne and J. Bouquet, 1752, pp. 240-241, It is not uncommon for those who at their first entrance into the world were distinguished for eminent attainments or superior abilities, to disappoint the hopes which they had raised, and to end in neglect and obscurity that life which they began in celebrity and honour.
   […] his life was despaired of; and all Japan was filled with alarm and apprehension at the prospect of an infant’s ascending the throne: […] Their fears, however, were happily disappointed by the recovery of the emperor, 1769, Tobias Smollett, The History and Adventures of an Atom, volume 2, London: Robinson and Roberts, pages 165–166
   […] a change in prices and rewards, as measured in money, generally affects different classes unequally […] and redistributes Fortune’s favours so as to frustrate design and disappoint expectation. 1923, John Maynard Keynes, “Social Consequences of Changes in the Value of Money”, in Essays in Persuasion, London: Macmillan, published 1933, pages 80–81
4. (transitive, dated) To show (an opinion, belief, etc.) to be mistaken.
   “Well, I thought it was too good to be true,” he said at last, with a sigh of disappointed conviction. 1909, Lucy Maud Montgomery, “Chapter14”, in Anne of Avonlea, Boston: L. C. Page, page 150
5. (transitive, obsolete) To prevent (something planned or attempted).