Roman law. A suit by a buyer to compel specific performance of the contract or to obtain damages for the breach. This action, as well as the actio venditi, arose from the contract of sale, and were both actiones directœ. The actio venditi, competent to the seller, was the action by which he recovered payment of the stipulated price. The actio empti was that competent to the purchaser. Under it he could compel delivery of the subject sold, or where the subject was extra commercium, and could not be delivered, could obtain indemnification for any damage he had sustained. These actions are sometimes called ex empto, and ex vendito.