That establishes the truth or existence of something; serving as proof or evidence. In later use frequently with of.

Characterized by or capable of demonstrative reasoning, logical. Obsolete. rare.

Making clear, manifest, or evident. Obsolete.

That displays, exhibits, indicates, or reveals something. Now somewhat rare.

Having the quality or function of proving or demonstrating; = probative, adj. 2a. rare after 17th cent.

Having the power of producing conviction.

That evinces; †convincing.

That demonstrates something; (in early use chiefly) that establishes the truth of something; (later chiefly) that shows how to do something.

Serving to show or exhibit; probative.

Chiefly Law. Originally Scots Law. Having the quality or function of proving or demonstrating; affording proof or evidence; demonstrative, evidential.

that substantiates something.

That proves (in various senses); esp. validating; testing.

Of or relating to demonstration (in various senses); (also) providing demonstration.

That verifies; having the property of verifying; of the nature of, serving as, a verification.

Verificatory.