- The definition of a cohort is a group of people who have come together in support of a common cause, or a group of people who share a common characteristic.
A band of warriors fighting for the same cause are an example of a group of cohorts.
- an ancient Roman military unit of 300-600 men, constituting one tenth of a legion
- a band of soldiers
- any group or band
- an associate, colleague, or supporter: one of the mayor's cohorts
- a conspirator or accomplice
- a subgroup sharing a common factor in a statistical survey, as age or income level
Origin of cohortMiddle English ; from Classical Latin cohors, enclosure, enclosed company, hence, retinue, crowd ; from co-, co- + Indo-European an unverified form ĝhṛtis, a gathering ; from base an unverified form ĝher-, to grasp, enclose from source yard
- a. A group or band of people.b. A companion or associate.c. A generational group as defined in demographics, statistics, or market research: “The cohort of people aged 30 to 39 &ellipsis; were more conservative” (American Demographics).
- a. One of the 10 divisions of a Roman legion, consisting of 300 to 600 men.b. A group of soldiers.
Origin of cohortMiddle English, from Old French cohorte, from Latin cohors, cohort-; see gher-1 in Indo-European roots. Usage Note: The English word cohort comes from the Latin word cohors, which meant “an enclosed area” or “a pen or courtyard enclosing a group of cattle or poultry.” By extension, the word could refer to any group in general and in particular to a company of soldiers or a troop of cavalry in the army of ancient Rome. The group of men forming the bodyguard of a Roman general or the retinue of a provincial governor was also called a cohors. Because of this history, some people insist that the English word cohort should be used to refer only to a group of people and never to an individual person. But the use of cohort in reference to individuals has become so common, especially in the plural, as to overshadow the use in the singular to refer to a group. Both in our 1988 and 1999 surveys, 71 percent of the Usage Panel accepted the sentence The cashiered dictator and his cohorts have all written their memoirs. These results stand in stark contrast to those of our 1965 survey, in which 69 percent rejected the usage. Moreover, the Panel is divided regarding the traditional usage referring to a group. In 1988, 43 percent accepted The gangster walked into the room surrounded by his cohort, and in 1999, 56 percent accepted Like many in her cohort, she was never interested in kids when she was young.
- A group of people supporting the same thing or person.
- (statistics) A demographic grouping of people, especially those in a defined age group, or having a common characteristic.
- The 18-24 cohort shows a sharp increase in automobile fatalities over the proximate age groupings.
- (military, history) Any division of a Roman legion, normally of about 500 men.
- Three cohorts of men were assigned to the region.
- An accomplice; abettor; associate.
- 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.
- Any band or body of warriors.
- (botany) A natural group of orders of plants, less comprehensive than a class.
- A colleague.
From Latin cohors (stem cohort-), perhaps via Old French cohorte.