[422] investīgātio, ōnis, f. (investigo), das Aufspüren, Erforschen, naturae, Cic. Acad. 1, 34: rerum occultissimarum, Cic. de fin. 5, 4, 10: veri, Cic. de off. 1, 13 u. 19: sapientiae eius, Vulg. Isai. 40, 28: mentis investigationes, Firm. math. 5, 1, 11.