Undermine
English Meaning
To excavate the earth beneath, or the part of, especially for the purpose of causing to fall or be overthrown; to form a mine under; to sap; as, to undermine a wall.
- To weaken by wearing away a base or foundation: Water has undermined the stone foundations.
- To weaken, injure, or impair, often by degrees or imperceptibly; sap: Late hours can undermine one's health.
- To dig a mine or tunnel beneath.