Lewis & Short

rŭgītus, ūs, m. [rugio].

  1. I. A roaring of lions, Vop. Prob. 19: leonis, Vulg. Job, 4, 10.
  2. II. Transf., a rumbling in the bowels, Cael. Aur. Tard. 3, 2; 4, 7; Hier. Ep. 22, 11.