Inhabitants or residents of an atrium; people who live in or occupy a particular house or courtyard.
From Latin atrium 'hall/court' + -enses plural suffix meaning 'inhabitants of.' A term from Roman legal and social vocabulary describing household residents.
In Roman times, 'atrienses' referred to the people living within a wealthy family's atrium complex—this shows how architecture literally shaped social hierarchies and who held power in the household.
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