Lewis Short
(verb) : rŭgĭo, īre
* To roar, as a lion, Spart. Get. 5; Vulg. Psa. 21, 13; Auct. Carm. Philom. 49; to bray, as an ass, Amm. 27, 3, 1: onager,Vulg. Job, 6, 5: quasi ursi,id. Isa. 59, 11.
* Transf., to rumble: rugientem saturare ventrem,Hier. Ep. 52, 2, § 6.
* To call aloud, Vulg. Psa. 37, 9; id. Jer. 25, 30.
Charlton T. Lewis, Charles Short, A Latin Dictionary