Lewis Short
obtūsĭo (noun F) : obtundo
* A crushing, bruising: membri,Tert. Res. Carn. 57.
* Bluntness, dulness (eccl. Lat.): obtusio sensuum,Tert. adv. Marc. 3, 6; Cael. Aur. Tard. 1, 1, 6: visus,id. ib. 1, 1, 5.— Absol., Cael. Aur. Tard. 2, 6, 91; 1, 4, 62.
Charlton T. Lewis, Charles Short, A Latin Dictionary