compurgatorial,a.|kəmpɜːgəˈtɔərɪəl| [f. as next + -al1.] Of or pertaining to compurgators. 1855Milman Lat.Chr. (1864) V. ix. viii. 425 The Consuls of Nismes, Avignon, and St. Gilles, took their compurgatorial oath to his fulfilment of all these stipulations.