[ 'dɔ:mɪt(ə)ri ]
■ noun ( plural dormitories )
1》 a bedroom for a number of people in a school or other institution.
↘ N. Amer. a college hall of residence.
2》 [as modifier ] denoting a small town or suburb from which people travel to work in a nearby city.
Origin
ME: from L. dormitorium , neut. (used asnoun) of dormitorius , from dormire 'to sleep'.