A resident or inhabitant of an atrium; a person living in a particular household or courtyard, especially in Roman times.
From Latin atrium 'hall' + -ensis singular suffix meaning 'of or from.' A singular form of atrienses, used in Roman household and legal contexts.
The Roman household was so hierarchical that they had a specific word for someone living in the atrium—it revealed your social status and relationship to the paterfamilias (head of household).
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