phrasal
: to deprive of foundation or basis : destroy claims or appearances of the validity of : destroy the effectiveness or cogency of
a fact that cuts the ground from under his argument
phrasal
: to deprive of foundation or basis : destroy claims or appearances of the validity of : destroy the effectiveness or cogency of
a fact that cuts the ground from under his argument
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012