Hypothecation
When a person pledges a mortgage as collateral for a loan, it refers to the right that a banker has to liquidate goods if you fail to service a loan. The term also applies to securities in a margin account used as collateral for money loaned from a brokerage
Investopedia Commentary
You are said to "hypothecate" the mortgage.
Related Links
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Mortgages: How Much Can You Afford?
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See also: Collateral, Loan, Mortgage, Pledged Asset, Rehypothecation
hypothecate