He was able to plea down his sentence by revealing the names of three of his cohorts, as well as the source of the information.
Origin of cohort
Middle English from Old French cohortefrom Latin cohorscohort-gher-1 in Indo-European roots
American Heritage Dictionary of the English Language, 5th Edition
From Latincohors (stem cohort-), perhaps via Old French cohorte.
Cohort Sentence Examples
Florus withdrew with all his troops, except one cohort, to Caesarea.
Claudius established here, as at Ostia, a cohort of vigiles as a fire-brigade.
23 his successor Tiberius concentrated this force on the eastern edge of Rome in fortified barracks: hence one cohort in turn, clad in civilian garb, was sent to the emperor's house on the Palatine, and large detachments could be despatched to foreign wars.
That compact was not, as has often been assumed, merely the means of assuring to Napoleon the mastery of the continent and the control of a cohort of kings.
Although the Uredineae clearly lead on to the Basidiomycetes, yet owing to their retaining in many cases definite traces of sexual organs they are clearly a more primitive group. Their marked parasitic habit also separates them off, so that they are best included with the Basidiomycetes in a larger cohort which may be called Basidiales.