civil law. A decree of the Roman senate, which derived its name from that of a certain usurer who was the cause of its being made, in consequence of his exactions. It was intended to protect sons who lived under the paternal jurisdiction, from the unconscionable contracts which they sometimes made on the expectations after their fathers’ deaths; another, and perhaps, the principle object, was to cast odium on the rapacious creditors. It declared such contracts void. The law is said to have derived its name from that of a notorious usurer.