res accessoriaglossary / RES ACCESSORIA res accessoria (rays ak-ses-or-ee-[schwa]). [Latin] Civil law. An accessory thing; a thing that is related to a principal thing. Pl. res accessoriae. 词条贡献者 译员Matthew,毕业于英国顶尖的高级翻译学院,专注翻译各种与争议解决有关的法律文件。