etymology

Co-hort or cohort?

 A cohortus in a hortus…

Just saw a CNN (entertainment) journalist write “co-hort” for “cohort”. A misunderstanding, a reanalysis following co-op or co-ed? Or just historical play on form, since cohort comes from com-hortus, where “hortus” means garden and “com” means with. The people at the garden/plot of land -> guards -> army division in the roman army -> modern day group of people who work together. (Also the origin for “court”.)