Variant or dialectal form of 'chock', meaning to wedge or block something firmly in place.
Related to 'chock' from uncertain origin, possibly from Dutch or a nautical term. Used to secure cargo or machinery by wedging wedges or blocks underneath.
Sailors developed 'chock' terminology for securing heavy cargo, and the word now appears as chocks and cleats all over modern boats—little etymological anchors tying us to maritime safety practices.
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