W. Va. Code § 38-7-44

On any rehearing or new trial had under the preceding section of this article, if the judgment or decree be for the defendant, the court may order the plaintiff in the original suit, or his personal representative, to restore any money paid him under his judgment or decree therein, with interest from the date of such order, to the defendant, or his personal representative, entitled thereto, and may enter a judgment or decree against such plaintiff therefor, and, if the defendant, or his personal representative, fail to recover on such rehearing or new trial, the original judgment or decree shall be confirmed; and in either case the costs shall be adjudged to the prevailing party.