Main Entry: co·hort

Pronunciation: \ˈkō-ˌhȯrt\

Function: noun

Etymology: Middle English, from Latin cohort-, cohors — more at court

Date: 15th century

1 a : one of 10 divisions of an ancient Roman legion b : a group of warriors or soldiers c : band, group d : a group of individuals having a statistical factor (as age or class membership) in common in a demographic study <a cohort of premedical students>
2 : companion, colleague <a few of their…cohorts decided to form a company — Burt Hochberg>