A servant or attendant who carries and uses an ewer, especially for pouring water for washing.
From 'ewer' plus the agent suffix '-er.' In medieval households, this was an actual job title for someone who managed table water service.
The 'ewerer' was a real position in medieval royal and noble households—it was ranked as a specific job in the servant hierarchy, showing how important water service was before modern plumbing made it trivial.
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