A wooden pole or staff used to carry a cowl (large bucket or container) between two people, with the bucket suspended from the middle of the pole.
From Middle English 'cowl' (a large bucket or tub, from Latin 'cuculla' meaning hood) + 'staff' (a stick or pole). The compound emerged in medieval times when this was a common method of transporting liquids or goods.
The cowlstaff is a beautiful example of how ordinary people solved practical problems before modern technology—two people could balance heavy loads of water or milk more easily than carrying them separately, making it a simple but clever piece of ancient engineering.
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