sībĭlātĭo — Lewis & Short
sībĭlātĭo (collat. form sĭfĭlātĭo, ōnis, f.sibilo,
Non. 531, 4),I a sibilation, hissing (late Lat.):
serpentium,Vulg. Sap. 17, 9:
vel stridor,Cael. Aur. Tard. 2, 14, 198.