I / investīgātor
noun

investīgātor

gen. investīgātōris · gender masculine · decl. 3rd
he that searches; inquires into; an investigator
he that searches or inquires into, an investigator (class.): acer et diligens rerum, Cic. Univ. 1, 1: antiquitatis, id. Brut. 15, 60: conjurationis, id. Sull. 30, 85. —
A contriver
A contriver: malorum, Vulg. Prov. 11, 27.