constable

n. officer of the peace; police officer (British)

A constable is a person holding a particular office, most commonly in law enforcement. The office of constable can vary significantly in different jurisdictions.Historically, the title comes from the Latin comes stabuli (count of the stables) and originated from the Eastern Roman Empire; originally, the constable was the officer responsible for keeping the horses of a lord or monarch. The title was imported to the monarchies of medieval Europe, and in many countries developed into a high military rank and great officer of State (e.g. the Constable of France).
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Noun
1. English landscape painter (1776-1837)
(synonym) John Constable
(hypernym) painter

Noun
1. a lawman with less authority and jurisdiction than a sheriff
(hypernym) lawman, law officer, peace officer
2. a police officer of the lowest rank
(synonym) police constable
(hypernym) policeman, police officer, officer
(classification) United Kingdom, UK, Great Britain, GB, Britain, United Kingdom of Great Britain and Northern Ireland

(n.)
An officer of the peace having power as a conservator of the public peace, and bound to execute the warrants of judicial officers.
  

(n.)
A high officer in the monarchical establishments of the Middle Ages.
  

The chief military officer of the English crown , with the Marshal as lieutenant, known respectively as the 'lord high constable' and the 'earl marshal.' Their authority extended to all affairs relating to relations between soldiers and merchants, and in relations between soldiers. During the 16th century, the two presided over courts of chivalry .