Значение слова METANIPTRON в Справочнике Персонажей и культовых объектов греческой мифологии

"The symposium itself then begins with a libation of undiluted wine, or ‘akratos’, using a special cup, or ‘metaniptron’, passed round the participants, in honour of the ‘Good Divinity’, or ‘Agathos Daimon’. The ritual is accompanied by paeans sung to the god.”