peridrome
/ˈpɛrɪdrəʊm/Classical Archit. rare
noun
A gallery; a colonnaded porch or arcade running around a building; the space between the peristyle and the wall of a building.
Origin
Early 17th century; earliest use found in Henry Cockeram (fl. 1623–1658), lexicographer. From ancient Greek περίδρομος gallery running round a building, use as noun of masculine of περίδρομος that runs round from περι- + -δρομος.