trooper
意味
- 騎兵,装甲隊員
- 《米》騎馬警官,(自動車に乗った)警官
- 騎兵の馬
- 《米》州警察の警官
語源
英語の原文（Wiktionary）
From troop + -er, from French troupe. The sense of “one who endures adversity” comes from trouper (“member of an acting troupe”) but through assimilation with the sense of “soldier” has come to be usually spelled “trooper”.