'aventure' originates from Old French, specifically the word 'aventure', which itself comes from Late Latin 'adventura'; from Latin 'advenire', where 'ad-' meant 'to' and 'venire' meant 'to come'.

'aventure' appeared in Middle English as 'aventure' (also spelled 'adventure' in some texts); over time the form 'adventure' with an inserted 'd' became standard in Modern English, while 'aventure' remained as an archaic or literary variant.

Initially it meant 'that which is about to happen; a chance or event', and over time the sense broadened toward 'an exciting, risky experience' (now usually spelled 'adventure'); in modern English 'aventure' is largely archaic, retaining senses of chance and risky undertaking.