Lewis Short
ob-ductÄo (noun F) : obduco
* A covering, veiling, enveloping. *
* In gen.: nubila inimica obductione pendent,Arn. 1, 7.
* In partic., a veiling of criminals before their execution: obductio capitis,Cic. Rab. Perd. 5, 16: capitum,Amm. 14, 7, 21; Vulg. Eccles. 5, 1; 5, 10.
Charlton T. Lewis, Charles Short, A Latin Dictionary