neutralise

verbs

get rid of (someone who may be a threat) by killing
"The mafia liquidated the informer"; "the double agent was neutralized"
do in, knock off, liquidate, neutralise, neutralize, waste
make incapable of military action
neutralise, neutralize
is derived from
neutralisation
make ineffective by counterbalancing the effect of
"Her optimism neutralizes his gloom"; "This action will negate the effect of my efforts"
negate, neutralise, neutralize, nullify
is derived from
neutralisation
make chemically neutral
"She neutralized the solution"
neutralise, neutralize
is derived from
neutralisation