cohort - Dictionary definition and meaning for word cohort
cohort = co + hort = co + head = people who have a common head(thought) or head person(knight leader) = group of people ; sometimes, group of warriors
it sounds like cohorse (co-horse)...in war, a fighter is armed riding on a horse..
co+hort == coperating + whole FORT(hort)== band of armed forces
cohort = co heart their hearts are together and they work together