What is Affirmative Warranty?

Legal Definition
Any warranty that will confirm the existence of a fact at the same time that an insurance policy is entered into.
Legal Definition
In the law of insurance, warranties may be either affirmative or promissory. Affirmative warranties may be either express or implied, but they usually consist of positive representations in the policy of the existence of some fact or state of things at the time, or previous to the time, of the making of the policy; and they are, in general, conditions precedent, which, if untrue, whether material to the risk or not, the policy does not attach, as it is not the contract of the insurer. Maupin v. Insurance Co., 53 W. Va. 557, 45 S. E. 1003; Hendricks v. Insurance Co.., 8 Johns. (N. Y.) 1; Cowan v. Insurance Co., 78 Cal. 181, 20 Pac. 408.
-- Black's Law Dictionary