con·cierge 
(kôɴ-syârzh)
(kôɴ-syârzh)n.
1. A staff member of a hotel or apartment complex who assists guests or residents, as by handling the storage of luggage, taking and delivering messages, and making reservations for tours.
2. A person, especially in France, who lives in an apartment house, attends the entrance, and serves as a janitor.
[French, from Old French cumcerges, from Vulgar Latin *cōnservius, alteration of Latin cōnservus, fellow slave : com-, com- + servus, slave.]