ex-saevĭo (exaev-), īre, v. n.,
to rage itself out , to cease raging : stetit ibi, dum reliquum tempestatis exsaeviret, Liv. 30, 39, 2.
ex-saeviō —, —, īre, to cease raging: dum reliquum tempestatis exsaeviret, L. ...
An Elementary Latin Dictionary