I am developing a software product. Very briefly, given a floor plan, it lets the user edit it, and add information to each "room".
Think of a shopping mall, where it will display the floor plan and have a list of shops, alphabetically or by category; search for one & it is highlighted on the map. Click any room on the map & get information — maybe opening hours, restaurant menu, etc.
Now just shopping malls; anywhere that needs a "directory", maybe last office blocks, college campuses (campi? ;-), exhibition halls, etc. Is there one Latin word that sort of conveys that — which would sound good as a product name?