Juramentum Voluntarium
Defined in 3 dictionaries — Cyclopedic (1922), Ballentine's (1916), Black's (1891)
The Cyclopedic Law Dictionary
Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
In Roman law. A voluntary oath, which a party might make on the offer of his adversary to be bound thereby. He was not, however, compelled to accept the offer, as in case of the juramentum necessarium.
Ballentine's Law Dictionary
James A. Ballentine · 1916
(Civil Law) A voluntary oath, not required of a party to the action, but binding on the other party when made.
A Dictionary of Law
Henry Campbell Black · 1891
In Roman law. <A voluntary oath. A species of appeal to conscience, by which one of the parties to a suit, instead of proving his cuse, offered to abide by what his adversary should answer under oath. 1 Whart. Ev. § 458; Dig. 12, 2, 34, 6.