1. plural of congius, an ancient Roman unit of liquid measure equal to about one gallon
Usage: historical; classical studies

Examples

• The merchant ordered several congii of olive oil for the festival.
• Ancient Roman recipes often called for measurements in congii.
• The amphora could hold approximately six congii of wine.
• Historians studied the capacity of vessels marked in congii.
• The tax records listed imports measured in congii and other Roman units.