commissionaire
/kəˌmɪʃəˈneə(r)/noun
- chiefly Brit. a uniformed door attendant at a hotel, theatre, or other building〈主英〉（旅馆、剧院或其他建筑物门口的）穿制服的看门人（或服务员）。
词源
mid 17th cent.: from French, from medieval Latin commissarius 'person in charge', from Latin committere 'entrust' （see COMMIT）.