mīrābiliter adv.with comp.
mirabilis, wonderfully, astonishingly, marvellously, surprisingly : mirabiliter volgi mutata est voluntas, N.: mōratus est, a strange fellow : mirabilius augere.
mīrābĭlĭter, adv., v. mirabilis fin. ...
A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.