A word which properly means watchmen or sentinels of any kind (B. G.
69), but is more particularly given to the soldiers of the cohort who guarded the palace of
the Roman emperor (Suet. Ner. 8
). Their commanding officer was called tribunus
42). When the emperor went to an entertainment at the
house of another person, the excubitores appear to have accompanied him, and to have kept
guard as in his own palace (