chock
noun
[ tʃɒk ]
• a wedge or block placed against a wheel or rounded object, to prevent it from moving.
• "their aircraft stood gently shuddering against their chocks"
• a ring with a gap at the top, through which a rope or line is run.
chock
verb
• prevent the movement of (a wheel or vehicle) with a chock.
• "the front wheel will need to be chocked"
Origin:
Middle English: probably from an Old Northern French variant of Old French çouche, çoche ‘block, log’, of unknown ultimate origin.
