Ewers' Mates are a type of basin, which is a large bowl-shaped container used for holding water or other liquids. The term 'EWERS' Mates' is derived from the German word 'EWER, ' which means 'water pitcher.' These BASINS were traditionally used in households to hold water for washing hands and faces, and were often made of ceramic or metal. They were also used in churches and other religious settings to hold holy water.