undermine

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undermine

[¦ən·dər¦mīn]
(mining engineering)
To excavate the earth beneath, especially for the purpose of causing to fall; to form a mine under.
References in periodicals archive ?
They have in common the idea of Jew as underminer or betrayer.
Apparently, we all have negative friends in the guise of passive aggressive underminers, drama queens, constant talkers, plan-breakers and moaners.
The attack exemplified rightwing interventions within the cultural wars that have raged on campuses since the 1960s whereby radicals and activists have been stigmatized as subversives and underminers of proper academic decorum, a critique Gitlin shares.