sĭlentĭōsus — Lewis & Short
sĭlentĭōsus, a, um, adj.silentium,
I perfectly still or silent: nactus opacae noctis silentiosa secreta, App. M. 11 init.—Adv.: sĭlentĭōsē, stilly, silently:
silentiose geritur publicum bonum,Cassiod. Var. 11, 1 med.