from
Bouvier's Law Dictionary, Revised 6th Ed (1856)
CAUTIO PRO EXPENSIS. Security for costs or expenses.
2. This term is used among the civilians, Nov. 112, c. 2, and generally
on the continent of Europe. In nearly all the countries of Europe, a foreign
plaintiff, whether resident there or not, is required to give caution pro
expenses; that is, security for costs. In some states this requisition is
modified, and, when such plaintiff has real estate, or a commercial or
manufacturing establishment within the state, he is not required to give such
caution. Faelix, Droit. Intern. Prive, n. 106.