C / cryptŏportĭcus
noun greek

cryptŏportĭcus

gen. cryptŏportĭcūs · gender feminine · decl. 4th
vox hibrida, from κρυπτός and porticus
a covered gallery; passage, a vault, a hall
a covered gallery or passage, a vault, a hall, Plin. Ep. 2, 17, 16 sq.; 5, 6, 27 sq. al.