J

Latin. Throwing down a stone. An act which was symbolic of an assertion of right or title in land and was employed to bar the acquisition of a prescriptive right or title by adverse possession. One of the modes under the civil law of interrupting prescription. Where one person was building on another's ground, and in this way acquiring a right by usucapio, the true owner challenged the intrusion and interrupted the prescriptive right by throwing down one of the stones of the building before witnesses called for the purpose.