I.a supposing, opining; a supposition, conjecture, imagination, fancy, opinion, belief (class.): “opinationem volunt esse imbecillam assensionem,” Cic. Tusc. 4, 7, 15; id. Ac. 2, 25, 78: “haec autem opinatio est judicatio se scire, quod nesciat,” id. Tusc. 4, 11, 26; cf. “the context: mordax et inepta,” Val. Max. 1, 8, 8: “(Tullius) quid super tali opinatione sentiret,” Arn. 3, 6.
ŏpīnātĭo , ōnis, f. id.,