undermine
To dig underneath (something), to make a passage for destructive or military purposes; to sap.
Other meanings
To weaken or work against; to hinder, sabotage.
“The war efforts were undermined by the constant bickering between the allies.”
To erode the base or foundation of something, e.g. by the action of water.
Related words
- underminable
- underminer
Where this comes from
This definition is adapted from “undermine” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.