Lewis & Short

tŭmultŭātĭo, ōnis, f. [tumultuor].

  1. I. A bustling, hurrying, bustle, confusion, tumult (very rare), Liv. 38, 2, 8.
  2. II. The irregular swearing of the milites tumultuarii, acc. to Isid. Orig. 9, 3, 55.