hostag

from Bouvier's Law Dictionary, Revised 6th Ed (1856)
HOSTAGE. A person delivered into the possession of a public enemy in the 
time of war, as a security for the performance of a contract entered into 
between the belligerents. 
     2. Hostages are frequently given as a security for the payment of a 
ransom bill, and if they should die, their death would not discharge the 
contract. 3 Burr. 1734; 1 Kent, Com. 106; Dane's Ab. Index, h.t. 
    

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