SOURING • DICCIONARIO INGLES.COM • Definition of Souring

... barred windows had descried other faces within, bending over measures of wine. Monsieur Defarge sold a very thin wine at the best of times, but it would seem to have been an unusually thin wine that he sold at this time. A sour wine, moreover, or a souring, for its influence on the mood of those who drank it was to make them gloomy. No vivacious Bacchanalian flame leaped out of the pressed grape of Monsieur Defarge: but, a smouldering fire that burnt in the dark, lay hidden ...

— A Tale of Two Cities - A Story of the French Revolution • Charles Dickens

... this great blessing, with all the deliverance from self-seeking and pride which it brings, has made it possible to go on imposing more and more of regulation and discipline on all sorts of men and women without either souring their spirit or transforming The Army's system into mere machinery. The Army will go on to carry out its Founder's purpose better and better the more it learns how to sit constantly at the feet of ...

— The Authoritative Life of General William Booth • George Scott Railton