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English word officer comes from Latin *opi-fak-io-, Latin -arium, and later Latin opificium (Work.)
*opi-fak-io- (Latin)
-arium (Latin)
Used to form nouns denoting a "place where things are kept" from other nouns.
opificium (Latin)
Work.
officium (Latin)
(figurative) an obligatory service, visit, or gesture. Duty, service. Office.
officiarius (Malayalam)
officiarius (Late Latin)
officier (Old French)
Officer.
officer (Anglo-Norman)
officer (English)
(transitive) To command like an officer.. (transitive) To supply with officers. (colloquial, military) A commissioned officer.. An agent or servant imparted with the ability, to some degree, to act on initiative.. One who has a position of authority in a hierarchical organization, especially in military, police or government organizations.. One who holds a public office.