undermine
verb
/ˌʌn.dəˈmaɪn/
,
/ˌʌn.dɚˈmaɪn/
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- To dig underneath (something), to make a passage for destructive or military purposes; to sap. [from 14th c.]
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saper
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- (figuratively) To weaken or work against; to hinder, sabotage. [from 15th c.]
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saper,
miner
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