means A person responsible for directing the work of others and overseeing the operations of a team, project, or organization.

from From Italian 'maneggiare,' to handle or control — especially a horse, in the riding-ring sense of 'managing' a spirited animal. The root is Latin 'manus,' hand, so a manager is literally one who keeps things 'in hand.' The word trotted into English through French ('manège,' the art of horsemanship) and by the late 1500s had broadened from horses to households, businesses, and eventually the people who hold the reins of other people's labor.