·adj Lascivious; brooding over evil thoughts.
II. Morose ·adj Of a sour temper; sullen and austere; ill-humored; severe.
mōrōsē, adv., v. morosus fin. ...
A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
mōrōsē adv. morosus, peevishly, captiously, morosely : ferre hominum ineptias. ...
An Elementary Latin Dictionary