- adventurous (adj.)
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- mid-14c., "hazardous" (also "occurring by chance," late 14c.), from Old French aventuros "chance, accidental, fortuitous;" of persons, "devoted to adventure" (Modern French aventureux), from aventure (see adventure (n.)). Sense evolution is through "rash, risk-taking" (c. 1400), "daring, fond of adventure" (mid-15c.).