Latin: In Roman law. Such private property as might be held by a slave, wife, or son who was unuer the patria potest as, separate from the property of the father or master, and in the personal disposal of the owner. Peculium castrense. In Roman law. That kind of peoulium which a son acquired in war. or from his connection with the camp, (castrum.) Heinecc. Elem. lib. 2, tit. 9,