souring
verb
Definitions
To make sour.
Example: Too much lemon juice will sour the recipe.
To become sour.
To spoil or mar; to make disenchanted.
To become disenchanted.
Example: We broke up after our relationship soured.
noun
Definitions
The process by which something is made, or becomes, sour.
The process by which fabric is soured, washing out the lime by means of acid.
Any sour apple.
Vinegar.