significavit

from The Collaborative International Dictionary of English v.0.48
Significavit \Sig`ni*fi*ca"vit\, n. [L., (he) has signified,
   perf. ind. of significare to signify.] (Eng. Eccl. Law)
   Formerly, a writ issuing out of chancery, upon certificate
   given by the ordinary, of a man's standing excommunicate by
   the space of forty days, for the laying him up in prison till
   he submit himself to the authority of the church. --Crabb.
   [1913 Webster]
    
from Bouvier's Law Dictionary, Revised 6th Ed (1856)
SIGNIFICAVIT, eccl. law. When this word is used alone, it means the bishop's 
certificate to the court of chancery, in order to obtain the writ of 
excommunication; but where the words writ of significavit are used, the 
meaning is the same as writ de excommunicato capiendo. 2 Burn's Eccl. L. 
248; Shelf. on Mar. & Div. 502. 
    

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