Excubitōres
A word which properly means watchmen or sentinels of any kind (
B. G. vii.
69), but is more particularly given to the soldiers of the cohort who guarded the palace of
the Roman emperor (
Suet. Ner. 8;
Oth. 6). Their commanding officer was called
tribunus
excubitor (
Claud. 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 (
Oth. 4).