Mortgage

v. t.
  1. (Law) To grant or convey, as property, for the security of a debt, or other engagement, upon a condition that if the debt or engagement shall be discharged according to the contract, the conveyance shall be void, otherwise to become absolute, subject, however, to the right of redemption.
  2. Hence: To pledge, either literally or figuratively; to make subject to a claim or obligation.