Latin, meaning: a yard, enclosure / troop, 1/ 10 of a legion. 
Military unit.
The basic tactical fighting unit of the late Republican and Imperial Army was the cohort (cohors), composed of 6 centuries, and at times numbering ca. 500 soldiers. Each cohort had its centurion, standard-bearer and hornblower to relay commands and maintain discipline and unity. In battle order the front line was composed of from the right the 1st …...
(Latin) cohort; a Roman military group consisting of 6 centuriae of soldiers.
a yard, enclosure / troop, 1 / 10 of a legion.