英语词汇hoist with his own petard的起源、历史背景-英语词源词典

hoist with his own petard. The petard of medieval times wasn’t a derrick, but a kind of rude hand grenade or mine that invaders would fasten to castle walls or gates. It took its name, oddly enough, from the French peter, “to break wind.” Metal and bell-shaped, it contained an explosive charge that was fired by a slow-burning fuse, but it was often poorly constructed and went off prematurely, blowing up the man who lit it as well as the castle wall. Such a man was said to be hoist (lifted or heaved) by his own petard. See derrick.

词汇	hoist with his own petard
词源	hoist with his own petard. The petard of medieval times wasn’t a derrick, but a kind of rude hand grenade or mine that invaders would fasten to castle walls or gates. It took its name, oddly enough, from the French peter, “to break wind.” Metal and bell-shaped, it contained an explosive charge that was fired by a slow-burning fuse, but it was often poorly constructed and went off prematurely, blowing up the man who lit it as well as the castle wall. Such a man was said to be hoist (lifted or heaved) by his own petard. See derrick.
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