Lewis Short
tūtāmen (noun N) : id.
* A means of defence, defence, protection (poet. and postclass.): (lorica) decus et tutamen in armis,Verg. A. 5, 262.—Plur.: domorum aut vestium,Arn. 2, 71: deposcimus rebus fessis,id. 1, 15.
Charlton T. Lewis, Charles Short, A Latin Dictionary