Security
Bouvier's Law Dictionary and Concise Encyclopedia · John Bouvier; revised by Francis Rawle · 1914
Bouvier's Law Dictionary and Concise Encyclopedia
That which renders a matter sure; an instrument which renders certain the performance of a contract. A person who becomes the surety for another, or who engages himself for the performance of another’s contract.
See Brown v. White, 3 Blackf. (Ind.) 431.
Collateral security is security given for the payment of a debt, or the performance of some other act.