Lewis Short
(adjective) : prae-ferrātus, a, um
* Tipped or shod with iron: modius,Cato, R. R. 11: pilum,pointed with iron,Plin. 18, 10, 23, § 97. —Transf.: praeferratus apud molas tribunus,i. e. chained, fettered,Plaut. Pers. 1, 1, 22.
Charlton T. Lewis, Charles Short, A Latin Dictionary