Vous avez cherché: demonstration (Anglais - Latin)

demonstration
manifestatio

convictio, convictionis demonstration, proof;
convictio

manifestatio, manifestationis manifestation; manifesting; demonstration, revelation, display;
manifestatio

apodixis, apodixos/is proof, demonstration; conclusive proof (l+s);
apodixis

and my speech and my preaching was not with enticing words of man's wisdom, but in demonstration of the spirit and of power:
et sermo meus et praedicatio mea non in persuasibilibus sapientiae verbis sed in ostensione spiritus et virtuti

demonstratio, demonstrationis demonstration, clear proof; description, definition by features; such oratory; indication; identification; act of pointing out/showing; (boundary of estate);
demonstratio