Thinks I to myself I never set eyes on an uglier, sourer faced young 'un."
"The Secret Garden"
Frances Hodgson Burnett
The measure of barley kneaded with the straw, of which the bread, sourer than yeast, was made, had not cost more than five sous; and the bread was musty and as dry as bark.
"Four Arthurian Romances "Erec et Enide", "Cliges", "Yvain", and "Lancelot""
Chretien DeTroyes
He did not ask whether the change came of a truer vision or a sourer judgment, put all down to the experience that makes a man wise, none to a loss within.
"Warlock o' Glenwarlock"
George MacDonald