fornĭcātus — Lewis & Short
fornĭcātus, a, um, adj.fornix, I.,
I vaulted, arched.
I Lit.:
paries vel solidus vel fornicatus,Cic. Top. 4, 22:
ambitus,Plin. 12, 5, 11, § 22.—
II As an adj. prop.: Via Fornicata, or Arch Street, a street in Rome leading to the Campus Martius, Liv. 22, 36, 8.