4. To cause or permit to become harsh or unkindly. "Souring his cheeks." Shak.
Pride had not sour'd nor wrath debased my heart.Harte.
5. To macerate, and render fit for plaster or mortar; as, to sour lime for business purposes.
(Sour), v. i. [imp. & p. p. Soured ; p. pr. & vb. n. Souring.] To become sour; to turn from
sweet to sour; as, milk soon sours in hot weather; a kind temper sometimes sours in adversity.
They keep out melancholy from the virtuous, and hinder the hatred of vice from souring into severity.Addison.
(Source) n. [OE. sours, OF. sourse, surse, sorse, F. source, fr. OF. sors, p. p. of OF. sordre,
surdre, sourdre, to spring forth or up, F. sourdre, fr. L. surgere to lift or raise up, to spring up. See
Surge, and cf. Souse to plunge or swoop as a bird upon its prey.]
1. The act of rising; a rise; an ascent. [Obs.]
Therefore right as an hawk upon a soursChaucer.
Up springeth into the air, right so prayers . . .
Maken their sours
to Goddes ears two.
2. The rising from the ground, or beginning, of a stream of water or the like; a spring; a fountain.
Where as the Poo out of a welle smallChaucer.
Taketh his firste springing and his sours.
Kings that ruleAddison.
Behind the hidden sources of the Nile.
3. That from which anything comes forth, regarded as its cause or origin; the person from whom anything
originates; first cause.
This source of ideas every man has wholly in himself.Locke.
The source of Newton's light, of Bacon's sense.Pope.
Syn. See Origin.
(Sour"crout`) n. See Sauerkraut.
(Sourde) v. i. [F. sourdre. See Source.] To have origin or source; to rise; to spring. [Obs.]
Now might men ask whereof that pride sourdeth.Chaucer.