What is Caution, Turatory?

Legal Definition
Scotch law. Juratory caution is that which a suspender swears is the best he can offer in order to obtain a suspension. Where the suspender cannot, from his low or suspected circumstances, procure unquestionable security, juratory caution is admitted. Ersk. Pr. L. Scot. 4, 3, 6.
-- Bouviers Law Dictionary