saevĭtas

ātis, f.

saevus

I. rage, violence, fury (late Lat.), Prud. στεφ. 10, 483; Firm. Math. 5, 5; Ambros. in Luc. 9, § 32; id. de Spirit. Sanc. 3, 16, 117.
Lewis & Short
A Latin Dictionary, 1879
An open-access project