Conversation so far:
what does a concierge do in an apartment
Daily duties of a Residential Concierge are handling requests from community residents, distributing mail, managing parking, commissioning handyman services, taking requests for repairs, presenting properties to potential tenants, and more.
what does a concierge do in a hotel
In hotels or resorts, a concierge assists guests by performing various tasks such as making restaurant reservations, booking hotels, arranging for spa services, recommending night life hot spots, and more.
where else do concierges work besides apartments, hotels, and resorts
The concept of the concierge has been applied more generally to other hospitality settings and to personal concierges who manage the errands of private clients.
where does the name of the concierge profession come from
The French word concierge is likely derived from the Old French cumcerges, itself related to the Medieval Latin consergius or the Latin conservus (fellow slave).

Question: is there another etymology
Self-contained rewrite: is there another etymology for concierge besides cumcerges