neutralize
verb
the strategy of the first half of the campaign was to neutralize the appalling economic news:
counteract, offset, counterbalance, balance (out), counterpoise, countervail, compensate for, make up for;
cancel out, make/render ineffective, nullify, negate, annul, undo, invalidate, be an antidote to, wipe out;
equalize, even up, square up;
rare negative, counterweigh.