indāgātĭo

ōnis, f.

id.

I. 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.
Lewis & Short
A Latin Dictionary, 1879
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