difficiliter adv.with comp.and sup.
difficilis, with difficulty : a vero internosci: difficilius, confieri, Cs.: quae difficillime praecaventur.
diffĭcĭlĭter, adv., with difficulty; v. difficilis fin., no. γ. ...
A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.