Concameratio, onis, f. g. Verbale. Sabinus. To vault or siele: to make an arch roofe. Concameratio. Budæus. A vault or archroofe sieled: a close walke or arbout in a garden.
Lewis and Short: Latin dictionary
concămĕrātĭo, ōnis, f. [concamero], a vaulting; a vault, Vitr. 2, 4; 5, 10; Plin. 11, 10, 10, 22; Dig. 32, 31 al.