Толковый словарь английского языка Oxford English Reference - pell-mell

adv., adj., & n. --adv. 1 headlong, recklessly (rushed pell-mell out of the room). 2 in disorder or confusion (stuffed the papers together pell-mell). --adj. confused, tumultous. --n. confusion; a mixture. Etymology: F p{ecirc}le-m{ecirc}le, OF pesle mesle, mesle pesle, etc., redupl. of mesle f. mesler mix