illustratio
From LSJ
οὐκ ἔστι λέουσι καὶ ἀνδράσιν ὅρκια πιστά → there are no pacts between lions and men, between lions and men there are no oaths of faith, there can be no covenants between men and lions
Latin > English (Lewis & Short)
illustrātĭo: (inl-), ōnis, f. id., in rhetoric,
I vivid representation: insequetur ἐνάργεια>, quae a Cicerone illustratio et evidentia nominatur, quae non tam dicere videtur quam ostendere, Quint. 6, 2, 32.