U / urnārĭum
noun

urnārĭum

gen. urnārii · gender neuter · decl. 2nd
a table on which water-vessels were set; an urn-table
a table on which water-vessels were set, an urn-table, Varr. L. L. 5, § 126 Müll.; id. ap. Non. 544, 20.