Reus
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Lat In the civil and canon law. The defendant in an action or suit A person judicially accused of a crime; a person criminally proceeded against Halli-fax, Civil Law, b.
3, c. 13, no. 7.
A party to a suit, whether plaintiff or defendant; a litigant. This was the ancient sense of the word. Calvim A party to a contract. Reus stipulandi, a party stipulating; the party who asked the question in the form prescribed for stipulations. Reus promittendi, a party promising; the party who answered the question.