mortgaging

verb
  1. 1

    To borrow against a property, to obtain a loan for another purpose by giving away the right of seizure to the lender over a fixed property such as a house or piece of land; to pledge a property in order to get a loan.

    We mortgaged our house in order to start a company.

  2. 2

    To pledge and make liable; to make subject to obligation; to achieve an immediate result by paying for it in the long term.

noun
  1. 1

    The act by which something is mortgaged.

Source: https://en.wiktionary.org/wiki/mortgage, https://en.wiktionary.org/wiki/mortgaging