어원, pet-= strive; seek; rush at impetuous a. 성급한 (an impetuous child) late Middle English: from Old French impetueux, from late Latin impetuosus, from impetere ‘to attack’. Similar: impulsive rash hasty overhasty reckless heedless foolhardy incautious imprudent injudicious appetite n. 식욕 (have a great appetite) petition n. 탄원서 (a petition of appeal) competition n. 경쟁 (enter a competition) perpet..