Antidote

Part of speech: noun (n.)

1. A remedy to counteract the effects of poison, or of anything noxious taken into the stomach; -- used with against, for, or to; as, an antidote against, for, or to, poison.

2. Whatever tends to prevent mischievous effects, or to counteract evil which something else might produce.

Part of speech: verb (v.)

1. To counteract or prevent the effects of, by giving or taking an antidote. Nor could Alexander himself . . . antidote . . . the poisonous draught, when it had once got into his veins. South.

2. To fortify or preserve by an antidote.