adjective, sour·er, sour·est.
verb (used without object)
verb (used with object)
Origin of sour
Synonyms for sour
Antonyms for sour
Related Words for souringembitter, spoil, exacerbate, exasperate, envenom, curdle, turn, acidify, disenchant
Examples from the Web for souring
Contemporary Examples of souring
Frustrated by her souring relationship with Salinger, Maynard fixated on the idea of having a daughter.15 Revelations from New J.D. Salinger Biography
September 2, 2013
Political independents are also souring on Obama, with just 37 percent approving of his job performance, a 10-point drop.In Wake of Surveillance Stories, Barack Obama’s Poll Numbers Plummet
June 17, 2013
Of the high hopes that characterize the Western Aliyah (immigration) souring so dramatically, so brutally.What Prisoner X Scandal?
February 20, 2013
And then—five days later, with the polls showing Americans souring on the Lebanon policy—Reagan decided to pull the troops out.How Romney Is Like Reagan
June 20, 2011
Where you once cold-shouldered friends without warning, you now realize you did so out of fear that they were souring on you.Zodiac Beast
Starsky + Cox
April 9, 2011
Historical Examples of souring
The work of the germ in the dairy is not, however, confined to souring the milk.Agriculture for Beginners
Charles William Burkett
What are the most favorable conditions for the souring of milk?Human Foods and Their Nutritive Value
The souring is done by passing the goods through an acid liquor at 2° Tw.The Dyeing of Cotton Fabrics
They were souring on him as they would have expressed it in their language.The American Claimant
Mark Twain (Samuel Clemens)
The struggle with his uncle seemed to be souring him or deadening him.Beauchamp's Career, Complete
Word Origin for sour
Old English sur "sour, tart, acid, fermented," from Proto-Germanic *sura- "sour" (cf. Old Norse surr, Middle Dutch suur, Dutch zuur, Old High German sur, German Sauer), from PIE root *suro- "sour, salty, bitter" (cf. Old Church Slavonic syru, Russian syroi "moist, raw;" Lithuanian suras "salty," suris "cheese").
French sur "sour, tart" (12c.) is a Germanic loan-word. Meaning :having a peevish disposition" is from early 13c. Sense in whisky sour (1885) is "with lemon added" (1862). Sour cream is attested from 1855.
c.1300, from sour (adj.). Cf. Old High German suren, German säuern. Related: Soured; souring.