probative
pro·ba·tive
adjective
1.
tending to prove a particular proposition or to persuade you of the truth of an allegation
- “evidence should only be excluded if its probative value was outweighed by its prejudicial effect”
Origin
From Middle English probatiffe, from Old French probatif, from Latin probātīvus (“belonging to proof”), from Latin probare (“show, prove, demonstrate”) (See prove). Originally in terme probatiffe (“a period of time assigned for the proving of an allegation”). First attested in the mid-15th century.
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.