erode

This term describes a process of gradual attrition rather than sudden destruction. In a physical sense, it evokes the image of a slow, persistent wearing down of a surface, typically by the elements, where the material is stripped away layer by layer.

When applied to abstract concepts like trust, power, or confidence, it suggests a steady decline caused by repeated negative influences. This usage emphasizes a loss of integrity or strength that happens so slowly it may not be noticed until significant damage has already occurred.