atrōciter adv.with comp.and sup.
atrox, fiercely, cruelly, harshly, indignantly minitari: agitare rem p., S.: atrocius in alqm saevire, L.: atrocissime agitur.
ā̆trōcĭter, adv., v. atrox fin. ...
A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.