undermine-v; 1 Senses

Sense Number 1: weaken, discredit, or destroy the base or foundation

Water has undermined the stone foundations.
They discovered that the massive columns had been undermined by blasting.
Criticism just undermines their confidence.
The leaked memos undermined the administration's credibility.
Fake IDs undermine efforts to stop underage drinking.
These activities have undermined the authority of the Administration.

PropBank: undermine.01
WordNet 3.0 Sense Numbers: 1, 2