CITATIO AD REASSUMENDAM CAUSAM

from Bouvier's Law Dictionary, Revised 6th Ed (1856)
CITATIO AD REASSUMENDAM CAUSAM, civil law. The name of a citation, which 
issued when a party died pending a suit, against the heir of the defendant, 
or when the plaintiff died, for the heir of the plaintiff. Our bill of 
revivor is probably borrowed from this proceeding.  
    

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