Wedged or secured in place with chocks; prevented from moving by placing blocks or wedges underneath.
Past tense of 'chock,' from Old French 'choque' meaning log or block. The term evolved from describing the act of placing wooden blocks to secure wheels, cargo, or vessels.
Aircraft wheels are still 'chocked' with wedges before takeoff—a safety procedure that uses technology barely changed from ancient cart-builders, making this word a time capsule of practical engineering.
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