Question: The word "dormitory" means "sleeping place". Is there any similar word for "eating place"?

Answer: 
There are lots of words for "eating place": dining room, cafeteria, restaurant, mess hall (military), galley (Navy), and so on.

Be aware that "dormitory" has a specific meaning, and is usually associated with schools, especially colleges. There are other words for sleeping place, including bedroom. If you're wondering if there are any words for eating place that are derived from the Latin meaning "eat" (as *dormitory* is from the Latin word for "sleep"), I'm not aware of any.
Some common "eating place" words are:

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> bar, cafeteria, café, canteen, chophouse, coffee shop, diner, dining room, dive, doughtnut shop, drive-in, eatery, eating house, eating place, fast-food place, greasy spoon, grill, hamburger stand, hashery, hideaway, hotdog stand, inn, joint\*, luncheonette, lunchroom, night club, outlet\*, pizzeria, saloon, soda fountain, watering hole [src](http://thesaurus.com/browse/restaurant)
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