or Surrogation, in the civil law, the act of substituting a person in the place, and intitling him to the rights, of another. In its general sense, surrogation implies a succession of any kind, whether of a person to a person, or of a person to a thing.

There are two kinds of surrogation: the one conventional, the other legal. Conventional surrogation is a contract whereby a creditor transfers his debt, with all appurtenances thereof, to the profit of a third person. Legal surrogation is that which the law makes in favour of a person who discharges an antecedent creditor; in which case there is a legal translation of all rights of the ancient creditor to the person of the new one.