What is Teste?

Legal Definition
a term that means to bear witness and is a declaration at the conclusion of a court order that bears witness to the official character of the document.
Legal Definition
Practice. The teste of a writ is the concluding clause, commencing with the word witness, &c.

2. The act of congress of May 8, 1792, 1 Story's Laws U. S. 257, directs that all writs and process issuing from the supreme or a circuit court, shall bear teste of the chief justice of the supreme court, or if that office be vacant, of the associate justice next in precedence; and that all writs or process issuing from a district court, shall hear teste of the judge of such court, or, if the said office be vacant, of the clerk thereof. Vide Serg. Const. Law, Index, h. t.; 20 Vin. Ab. 262; Steph. Plead. 25.
-- Bouviers Law Dictionary
Legal Definition
Bear witness; the attesta’ tion clause of an instrument.
-- Ballentine's Law Dictionary