-orium, -oria, -ory (Latin: a suffix; a place or a thing used for something).auditorium: 
ciborium: 
conservatorium: 
crematorium: 
digitorium: 
ejaculatorium: 
emporium: 
fumatorium: 
incubatorium: 
lavatorium: 
lubritorium: 
moratorium: 
natatorium: 
oratorium: 
pastorium: 
praetorium: 
refectorium: 
The dining hall in a monastery.
 
sanatorium: 
sanitarium: 
scriptoria (plural): 
scriptorium (singular): 
sensorium: 
sudoria: 
sudorium: 
vaporium: 
vivisectorium: 
vomitorium: 
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