gendarme (n.)youdaoicibaDictYouDict[gendarme 词源字典]
"French military police," 1796, from French (they were first organized in France 1790); earlier "mounted trooper" (1540s), from French contraction (14c.) of gens d'armes "men at arms." Gens is plural of gent "nation, people," from Latin gentem (nominative gens) "race, nation, people" (see genus). For armes see arm (n.2). Related: Gendarmerie, gendarmeryFrench also had gens de (la) robe "lawyers," which was sometimes borrowed in English.[gendarme etymology, gendarme origin, 英语词源]
M.P.youdaoicibaDictYouDict
1917, abbreviation of military police, which is recorded from 1827.