precaution
noun
°Previous caution or care; caution previously employed to prevent mischief or secure good; as, his life was saved by precaution.
"The ancient philosophers treasured up their supposed discoveries with miserable precaution. -- John Henry Newman."
°A measure taken beforehand to ward off evil or secure good or success; a precautionary act; as, to take precautions against risks of accident.
verb
°To warn or caution beforehand. --Locke.
°To take precaution against. --John Dryden.