To shut out; exclude; prevent.In law: To shut out by a judicial decree from further opportunity to assert a right or claim: said of the process by which all persons previously having right to redeem property from a forfeiture for non-payment of a debt are finally cut off from that right: as, to foreclose a mortgager of his equity of redemption.Henceā To enforce, as a mortgage, by shutting out in due process of law a mortgager and those claiming under him from the right to redeem the property mortgaged.To enforce a mortgage.