countercheck
noun
[ ˈkaʊntətʃɛk ]
• a second check for security or accuracy.
• a restraint.
• "the evil that we suffer is often a countercheck which restrains us from greater evil"
• a sharp or incisive retort.
• "the countercheck quarrelsome"
countercheck
verb
• stop (something) by acting to cancel or counteract it.
• "His Majesty with his own hand wrote to countercheck his former Warrant"