Lewis Short
pertractātĭo | pertrectātĭo (noun F) : and , , pertracto, a touching; hence trop.
* A handling: partium aegrarum,Gell. 5, 1, 4.
* A handling, i. e. an occupying or busying one's self with any thing, application to any thing: poëtarum,Cic. de Or. 1, 42, 187: rerum publicarum,id. ib. 1, 11, 48.
Charlton T. Lewis, Charles Short, A Latin Dictionary