Nearby words

  1. souple,
  2. soupmeat,
  3. soupspoon,
  4. soupy,
  5. soupçon,
  6. sour cherry,
  7. sour cream,
  8. sour dock,
  9. sour gourd,
  10. sour grapes

Origin of sour

before 1000; (adj. and noun) Middle English sure, soure, Old English sūr (orig. adj.); cognate with German sauer, Dutch zuur, Old Norse sūrr; (v.) Middle English souren, derivative of the adj.

Related forms Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sourness

British Dictionary definitions for sourness



a variant spelling of Sur



having or denoting a sharp biting taste like that of lemon juice or vinegarCompare bitter (def. 1)
made acid or bad, as in the case of milk or alcohol, by the action of microorganisms
having a rancid or unwholesome smell
(of a person's temperament) sullen, morose, or disagreeable
(esp of the weather or climate) harsh and unpleasant
disagreeable; distastefula sour experience
(of land, etc) lacking in fertility, esp due to excessive acidity
(of oil, gas, or petrol) containing a relatively large amount of sulphur compounds
go sour or turn sour to become unfavourable or inharmonioushis marriage went sour


something sour
mainly US any of several iced drinks usually made with spirits, lemon juice, and icea whiskey sour
an acid used in laundering and bleaching clothes or in curing animal skins


to make or become sour
Derived Formssourish, adjectivesourly, adverbsourness, noun

Word Origin for sour

Old English sūr; related to Old Norse sūrr, Lithuanian suras salty, Old Slavonic syrŭ wet, raw, surovu green, raw, Sanskrit surā brandy

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for sourness
Online Etymology Dictionary, © 2010 Douglas Harper