I / indāgātĭo
noun

indāgātĭo

gen. indāgātōnis · gender feminine · decl. 3rd
a searching into; investigation
a searching into, investigation (class. but rare): initiorum, Cic. Tusc. 5, 24, 69: atque inventio veri, id. Off. 1, 5, 15: rarioris verbi, Gell. 18, 2, 6.