Meaning

noun your basis for belief or disbelief; knowledge on which to base belief

noun an indication that makes something evident

noun (law) all the means by which any alleged matter of fact whose truth is investigated at judicial trial is established or disproved

originFrom Middle English evidence, from Old French [Term?], from Latin evidentia (“clearness, in Late Latin a proof”), from evidens (“clear, evident”); see evident.

Etymology from Wiktionary, CC BY-SA 3.0