Lewis Short
(adjective) : fornĭcātus, a, um, fornix, I.
* Vaulted, arched.
* Lit.: paries vel solidus vel fornicatus,Cic. Top. 4, 22: ambitus,Plin. 12, 5, 11, § 22.
* As an adj. prop.: Via Fornicata, or Arch Street, a street in Rome leading to the Campus Martius, Liv. 22, 36, 8.
Charlton T. Lewis, Charles Short, A Latin Dictionary