undermine

  1. Verb.  To dig underneath (something), to make a passage or for destructive or military purposes; to sap. (defdate, from 14th c.) .
  2. Verb.  To weaken or work against; to hinder, sabotage. (defdate, from 15th c.) .

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This entry was last updated on RefTopia from its source on 3/20/2012.